61.1.Features of the MSP 34x0G Family and Differences to MSPD
61.2.MSP 34x0G Version List
71.3.MSP 34x0G Versions and their Application Fields
82.Functional Description
92.1.Architecture of the MSP 34x0G Family
92.2.Sound IF Processing
92.2.1.Analog Sound IF Input
92.2.2.Demodulator: Standards and Features
102.2.3.Preprocessing of Demodulator Signals
102.2.4.Automatic Sound Select
102.2.5.Manual Mode
²
122.3.Preprocessing for SCART and I
122.4.Source Selection and Output Channel Matrix
122.5.Audio Baseband Processing
122.5.1.Automatic Volume Correction (AVC)
122.5.2.Loudspeaker and Headphone Outputs
122.5.3.Subwoofer Output
122.5.4.Quasi-Peak Detector
132.5.5.Micronas Dynamic Bass (MDB)
132.5.5.1.Dynamic Amplification
132.5.5.2.Adding Harmonics
132.5.5.3.MDB Parameters
132.6.SCART Signal Routing
132.6.1.SCART DSP In and SCART Out Select
132.6.2.Stand-by Mode
2
142.7.I
S Bus Interface
142.8.ADR Bus Interface
142.9.Digital Control I/O Pins and Status Change Indication
142.10.Clock PLL Oscillator and Crystal Specifications
S Input Signals
153.Control Interface
153.1.I
2
C Bus Interface
153.1.1.Internal Hardware Error Handling
163.1.2.Description of CONTROL Register
163.1.3.Protocol Description
2
173.1.4.Proposals for General MSP 34x0G I
C Telegrams
173.1.4.1.Symbols
173.1.4.2.Write Telegrams
173.1.4.3.Read Telegrams
173.1.4.4.Examples
2
173.2.Start-Up Sequence: Power-Up and I
C-Controlling
173.3.MSP 34x0G Programming Interface
173.3.1.User Registers Overview
213.3.2.Description of User Registers
223.3.2.1.STANDARD SELECT Register
2Micronas
Page 3
PRELIMINARY DATA SHEET
Contents, continued
PageSectionTitle
223.3.2.2.Refresh of STANDARD SELECT Register
223.3.2.3.STANDARD RESULT Register
243.3.2.4.Write Registers on I
263.3.2.5.Read Registers on I2C Subaddress 11
273.3.2.6.Write Registers on I2C Subaddress 12
403.3.2.7.Read Registers on I2C Subaddress 13
2
C Subaddress 10
hex
hex
hex
hex
413.4.Programming Tips
413.5.Examples of Minimum Initialization Codes
413.5.1.B/G-FM (A2 or NICAM)
413.5.2.BTSC-Stereo
413.5.3.BTSC-SAP with SAP at Loudspeaker Channel
423.5.4.FM-Stereo Radio
423.5.5.Automatic Standard Detection
423.5.6.Software Flow for Interrupt driven STATUS Check
MSP 34x0G
444.Specifications
444.1.Outline Dimensions
464.2.Pin Connections and Short Descriptions
494.3.Pin Descriptions
524.4.Pin Configurations
564.5.Pin Circuits
584.6.Electrical Characteristics
584.6.1.Absolute Maximum Ratings
594.6.2.Recommended Operating Conditions (T
= 0 to 70 °C)
A
594.6.2.1.General Recommended Operating Conditions
594.6.2.2.Analog Input and Output Recommendations
604.6.2.3.Recommendations for Analog Sound IF Input Signal
614.6.2.4.Crystal Recommendations
624.6.3.Characteristics
624.6.3.1.General Characteristics
634.6.3.2.Digital Inputs, Digital Outputs
644.6.3.3.Reset Input and Power-Up
2
654.6.3.4.I
664.6.3.5.I
C-Bus Characteristics
2
S-Bus Characteristics
684.6.3.6.Analog Baseband Inputs and Outputs, AGNDC
694.6.3.7.Sound IF Inputs
694.6.3.8.Power Supply Rejection
704.6.3.9.Analog Performance
734.6.3.10.Sound Standard Dependent Characteristics
775.Appendix A: Overview of TV-Sound Standards
775.1.NICAM 728
785.2.A2-Systems
795.3.BTSC-Sound System
795.4.Japanese FM Stereo System (EIA-J)
805.5.FM Satellite Sound
805.6.FM-Stereo Radio
Micronas3
Page 4
MSP 34x0GPRELIMINARY DATA SHEET
Contents, continued
PageSectionTitle
816.Appendix B: Manual/Compatibility Mode
816.1.Demodulator Write and Read Registers for Manual/Compatibility Mode
826.2.DSP Write and Read Registers for Manual/Compatibility Mode
836.3.Manual/Compatibility Mode: Description of Demodulator Write Registers
836.3.1.Automatic Switching between NICAM and Analog Sound
836.3.1.1.Function in Automatic Sound Select Mode
836.3.1.2.Function in Manual Mode
856.3.2.A2 Threshold
856.3.3.Carrier-Mute Threshold
866.3.4.Register AD_CV
876.3.5.Register MODE_REG
896.3.6.FIR-Parameter, Registers FIR1 and FIR2
896.3.7.DCO-Registers
916.4.Manual/Compatibility Mode: Description of Demodulator Read Registers
916.4.1.NICAM Mode Control/Additional Data Bits Register
916.4.2.Additional Data Bits Register
916.4.3.CIB Bits Register
926.4.4.NICAM Error Rate Register
926.4.5.PLL_CAPS Readback Register
926.4.6.AGC_GAIN Readback Register
926.4.7.Automatic Search Function for FM-Carrier Detection in Satellite Mode
936.5.Manual/Compatibility Mode: Description of DSP Write Registers
936.5.1.Additional Channel Matrix Modes
936.5.2.Volume Modes of SCART1/2 Outputs
936.5.3.FM Fixed Deemphasis
936.5.4.FM Adaptive Deemphasis
946.5.5.NICAM Deemphasis
946.5.6.Identification Mode for A2 Stereo Systems
946.5.7.FM DC Notch
946.6.Manual/Compatibility Mode: Description of DSP Read Registers
946.6.1.Stereo Detection Register for A2 Stereo Systems
946.6.2.DC Level Register
956.7.Demodulator Source Channels in Manual Mode
956.7.1.Terrestric Sound Standards
956.7.2.SAT Sound Standards
976.8.Exclusions of Audio Baseband Features
976.9.Phase Relationship of Analog Outputs
976.10.Compatibility Restrictions to MSP 34x0D
987.Appendix D: MSP 34x0G Version History
998.Appendix E: Application Circuit
1009.Data Sheet History
License Notice:
“Dolby Pro Logic” is a trademark of Dolby Laboratories.
Supply of this implementation of Dolby T echnolog y does not convey a license nor imply a right under any patent, or any other industrial or intellectual property right of Dolby Laboratories, to use this implementation in any finished end-user or ready-to-use final product. Companies planning to
use this implementation in products must obtain a license from Dolby Laboratories Licensing Corporation before designing such products.
4Micronas
Page 5
PRELIMINARY DATA SHEETMSP 34x0G
Multistandard Sound Processor Family
Release Note: Revision bars indicate significant
changes to the previous edition. The hardware and
software description in this document is valid for
the MSP 34x0G version B8 and following versions.
1. Introduction
The MSP 34x0G family of single-chip Multistandard
Sound Processors covers the sound processing of al l
analog TV-Standards worldwide, as well as the NICAM
digital sound standar ds. The full TV sound process in g,
starting with analog sound IF signal-in, down to processed analog AF-out, is performed on a single chip.
Figure 1–1 shows a simplified functional block diagram
of the MSP 34x0G.
This new generation of TV sound processing ICs now
includes versions for processing the multichan nel television sound (MTS) s ignal conforming to the standard
recommended by the Broadcast Television Systems
Committee (BTSC). The DBX noise reduction, or alternatively, Micronas Noise Reduction (MNR) is performed alignment free.
Other processed standards are the Japanese FM-FM
multiplex standard (EIA-J) and the FM Stereo Radio
standard.
Current ICs have to perform adjustment procedu res in
order to achieve good stereo sepa ration for BTSC and
EIA-J. The MSP 34x0G has optimum stereo performance without any adjustments.
All MSP 34xxG versions are pin compatible to the
MSP 34xxD. Only minor modifications are necessary
to adapt a MSP 34xxD controlling software to the
MSP 34xxG. The MSP 34x0G further simplifies controlling software. St andard selection requi res a single
2
C transmission only.
I
The MSP 34x0G has built-in automatic functions: The
IC is able to detect the actual sound standard automatically (Automatic Standard Detection). Furthermore,
pilot levels and identification sign als can be evaluated
internally with subsequent switching between mono/
stereo/bilingual; no I
2
C interaction is ne cessar y (Auto-
matic Sound Selectio n) .
The MSP 34x0G can handl e very high FM deviations
even in conjunction with NICAM processing. This is
especially impor tant for the introduction of NICAM in
China.
The ICs are produced in submicron CMOS technology.
The MSP 34x0G is available in the following packages:
PLCC68 (not intended for new design), PSDIP64,
PSDIP52, PQFP80, and PLQFP64.
Sound IF1
Sound IF2
I2S1
I2S2
SCART1
SCART2
SCART3
SCART4
MONO
ADC
SCART
DSP
Input
Select
De-
modulator
ADC
Pre-
processing
Prescale
Prescale
Fig. 1–1: Simplified functional block diagram of the MSP 34x0G
Loud-
speaker
Sound
Processing
Headphone
Sound
Processing
Source Select
DAC
DAC
DAC
DAC
SCART
Output
Select
Loudspeaker
Subwoofer
Headphone
I2S
SCART1
SCART2
Micronas5
Page 6
MSP 34x0GPRELIMINARY DATA SHEET
1.1. Features of the MSP 34x0G Family and Differences to MSPD
Feature (New features not available for MSPD are shaded gray. )3400341034203440 34503460
Standard Selection with single I
Automatic Standard Detection of terrestrial TV standards/Automatic Carrier Mute functionXXXXXX
2
C transmissionXXXXXX
Automatic Sound Selection (mono/stereo/bilingual), new registers MODUS, STATUS
Two selectable sound IF (SIF) inputsXXXXXX
Automatic Carrier Mute functionXXXXXX
Interrupt output programmable (indicating status change)
Loudspeaker / Headphone channel with volume, balance, bass, treble, loudnessXXXXXX
Loudspeaker channel with MDB (Micronas Dynamic Bass)
AVC: Automatic Volume CorrectionXXXXXX
Subwoofer output with programmable low-pass and complementary high-pass filterXXXXXX
5-band graphic equalizer for loudspeaker channelXXXXXX
Spatial effect for loudspeaker channelXXXXXX
Four Stereo SCART (line) inputs, one Mono input; two Stereo SCART outputsXXXXXX
Complete SCART in/out switching matrixXXXXXX
2
Two I
S inputs; one I2S outputXXXXXX
All analog Mono sound carriers including AM-SECAM LXXXXXX
All analog FM-Stereo A2 and satellite standardsXXX
Simultaneous demodulation of (very) high-deviation FM-Mono and NICAM
Adaptive deemphasis for satellite (Wegener-Panda, acc. to ASTRA specification) XXXX
XXXXX
XXXXXX
XXXXXX
XX
ASTRA Digital Radio (ADR) together with DRP 3510AXXXX
All NICAM standardsXX
Demodulation of the BTSC multiplex signal and the SAP channel
Alignment free digital DBX noise reduction for BTSC Stereo and SAP
Alignment free digital Micronas Noise Reduction (MNR) for BTSC Stereo and SAP
BTSC stereo separation (MSP 3420/40G also EIA-J) significantly better than spec.
SAP and stereo detection for BTSC system
Korean FM-Stereo A2 standardXXXXX
Alignment-free Japanese standard EIA-J
Demodulation of the FM-Radio multiplex signal
XXX
XX
X
XXX
XXX
XXX
XXX
1.2. MSP 34x0G Version List
VersionStatusDescription
MSP 3400GavailableFM Stereo (A2) Version
MSP 3410GavailableNICAM and FM Stereo (A2) Version
MSP 3420GavailableNTSC Version (A2 Korea, BTSC with Micronas Noise Reduction (MNR), Japanese EIA-J system)
MSP 3440GavailableNTSC Version (A2 Korea, BTSC with DBX noise reduction, Japanese EIA-J system)
MSP 3450GavailableGlobal Version (all sound standards)
MSP 3460Gnot confirmed Global Mono Version (all sound standards)
6Micronas
Page 7
PRELIMINARY DATA SHEETMSP 34x0G
1.3. MSP 34x0G Versions and their Application Fields
Table 1–1 provides an overview of TV sound standards
that can be processed by the MSP 34x0G family. In
addition, the MSP 34x0G is able to handle the FMRadio standard. With the MSP 34x0G, a complete
multimedia receiver covering all TV sound standards
together with te rrestr ial/ cable and satel lite radio sou nd
can be built; even ASTRA Digital Radio can be processed (with a DRP 3510A coprocessor).
Table 1–1: TV Stereo Sound Standards covered by the MSP 34x0G IC Family (details see Appendix A)
MSP Version
3400
3400
3400
3410
TVSystem
B/G
L6.5/5.85AM-Mono/NICAMSECAM-LFrance
I6.0/6.552FM-Mono/NICAMPALUK, Hong Kong
3460all Standards as above but Mono demodulation only.
SAW Filter
Tuner
Composite
Video
4.5FM-FM (EIA-J) NTSCJapan
4.5BTSC-Stereo + SAPNTSC, PALUSA, Argentina
33 34 39 MHz4.5 9 MHz
Sound
IF
Mixer
1
2
2
2
2
Vision
Demodulator
SCART
Inputs
Mono
SCART1
SCART2
SCART3
SCART4
MSP 34x0G
2
2
SCART1
SCART2
Loudspeaker
Subwoofer
Headphone
SCART
Outputs
I2S2ADRI2S1
Dolby
Pro Logic
Processor
DPL 351xA
ADR
Decoder
DRP 3510A
Fig. 1–2: Typical MSP 34x0G application
Micronas7
Page 8
8Micronas
ANA_IN1+
ANA_IN2+
ADR-Bus
Interface
AGC
A
D
Standard Selection
DEMODULATOR
(incl. Carrier Mute)
Decoded
Standards:
− NICAM
− A2
− AM
− BTSC
− EIA-J
− SAT
− FM-Radio
Deemphasis:
50/75 µs, J17
DBX/MNR
Panda1
Deemphasis
J17
Standard
and Sound
Detection
FM/AM
Prescale
(0E
NICAM
Prescale
(10
I2C
Read
Register
Sound Select
)
hex
)
hex
Automatic
FM/AM
Stereo or A/B
Stereo or A
Stereo or B
2. Functional Description
Loud-
0
speaker
Channel
Matrix
1
(08
)
hex
3
4
AVC
(29
Bass/
Treble
or
Equalize
)
hex
)
(02
hex
(03
)
hex
Loudness
Σ
(04
hex
Beeper
(14
)
hex
Comple-
Spatial
mentary
Highpass
)(05
(2D
0.5
hex
Lowpass
(2D
hex
Balance
Level
Adjust
Volume
)
hex
(00
)
hex
Effects
)(01
)
hex
)(2C
D
DACM_L
DACM_R
MDB
)
hex
A
DACM_SUB
MSP 34x0GPRELIMINARY DATA SHEET
I2S_DA_IN1
I2S_DA_IN2
SC1_IN_L
Headphone
I2S
Interface
I2S
Interface
A
I2S1
Prescale
)
(16
hex
I2S2
Prescale
(12
)
hex
SCART
D
Prescale
(0D
)
hex
SCART DSP Input Select
(13
)
hex
5
6
2
Source Select
Channel
Matrix
(09
I2S
Channel
Matrix
(0B
Quasi-Peak
Channel
Matrix
(0C
SCART1
Channel
Matrix
(0A
SCART2
Channel
Matrix
(41
)
hex
I2S
Interface
)
hex
Quasi-Peak
Detector
)
hex
Volume
(07
)
hex
Volume
)(40
hex
hex
hex
Bass/
Treble
(31/32
)(33
hex
I2C
Read
Register
Loudness
Σ
hex
(19
)
hex
)
(1A
hex
D
A
)
D
SCART1_L/R
SCART2_L/R
A
)
SC1_IN_R
SC2_IN_L
SC2_IN_R
SC3_IN_L
SCART Output Select
SC3_IN_R
SC4_IN_L
SC4_IN_R
MONO_IN
Fig. 2–1: Signal flow block diagram of the MSP 34x0G (input and output names correspond to pin names)
)
I2S_DA_OUT
)
(13
hex
SC1_OUT_L
SC1_OUT_R
SC2_OUT_L
SC2_OUT_R
Balance
(30
Volume
D
DACA_L
A
)
(06
hex
)
hex
DACA_R
Page 9
PRELIMINARY DATA SHEETMSP 34x0G
2.1. Architecture of the MSP 34x0G Family
Fig. 2–1 on page 8 shows a simplified block diagram of
the IC. The block diagram contains all features of the
MSP 3450G. Other members of the MSP 34x0G family
do not have the complete set of features: The demodulator handles only a subset of the standards presented
in the demodulator block; NICAM processing is only
possible in the MSP 3410G and MSP 3450G.
2.2. Sound IF Processing
2.2.1. Analog Sound IF Input
The input pins ANA_IN1+, ANA_IN2+, and ANA_IN−
offer the possibility to connect two different sound IF
(SIF) sources to the MSP 34x0G. The analog-to-digital
conversion of the preselected sound IF sign al is done
by an A/D-converter. An analog automatic gain ci rcuit
(AGC) allows a wide range of input levels. The highpass filters formed by the coupling capacitors at pins
ANA_IN1+ and ANA_IN2+ see Section 8. “Appendix
E: Applicati on C ircui t” on page 99 are sufficient in most
cases to suppr es s vid eo c omp one nts. S ome combinations of SAW filters and sound IF mi xer ICs, however,
show large picture components on their outputs. In this
case, further filtering is recommended.
2.2.2. Demodulator: Standards and Features
The MSP 34x0G is able to demodulate all TV-sound
standards worldwide inc luding the digital NICAM system. Depending on the MSP 34x0G version, the following demodulation modes can be performed:
A2 Systems: Detection and demodu lation of two separate FM carriers ( FM1 and FM2), demodulation and
evaluation of the identification signal of carrier FM2.
NICAM Systems: Demodulati on and decoding of t he
NICAM carrier, detection and demodulation of the analog (FM or AM) carrier. For D/K-NICAM, the FM carrier
may have a maximum deviation of 384 kHz.
Very high deviation FM-Mono: Detection and robust
demodulation of on e FM carr ier with a maximum deviation of 540 kHz.
BTSC-Stereo: Detection a nd FM demodulati on of the
aural carrier resulting in the MTS/MPX signal. Detection and evaluation of the pilot carr ier, AM demodulation of the (L−R)-carr ier a nd detecti on of the S AP subcarrier. Processing of DBX noise reduction or
Micronas Noise Reduction (MNR).
BTSC-Mono + SAP: Detection and FM demodulation
of the aural carrier resulting in the MTS/MPX signal.
Detection and evaluation of the pilot car rier, detection
and FM demodulation of the SAP s ubcarrie r. Processing of DBX n oise reducti on or Micr onas Noise Reduction (MNR).
Japan Stereo: Detection and FM demodulation of the
aural carrier resulting in the MPX signal. Demodulation
and evaluation of the identification signal and FM
demodulation of the (L−R)-carrier.
FM-Satellite Sound: Demodulation of one or two FM
carriers. Processi ng of high-deviation mono or na rrow
bandwidth mono, stereo, or bilingual satellite sound
according to the ASTRA specification.
FM-Stereo-Radio: Detection and FM d emodulati on of
the aural carrier resu lting in the MPX si gnal. Detecti on
and evaluation of the pilot carrier and AM demodulation of the (L−R)-carrier.
The demodulator blocks of all MSP 34x0G versions
have identical user interfaces. Even completely different systems like the BTSC and NICAM systems are
controlled the same way. Standards are selected by
means of MSP Standard Cod es. Automatic processes
handle standard detection and identification without
controller interaction. The key features of the
MSP 34x0G demodulator blocks are:
Standard Selection: The controlling of the de modula tor is minimized: All parameters, such as tuning frequencies or filter bandwidth, are adjusted automatically by transmitting one single value to the
STANDARD SELECT reg ister. For all standards, specific MSP standard codes are defined.
Automatic Standar d Detecti on: If the TV sound standard is unknown, the MSP 34x0G can automatically
detect the actual standard, switch to that standard, and
respond the actual MSP standard code.
Automatic Carrier Mute: To prevent noise effects or
FM identification problems in the absence of an FM
carrier, the MSP 34x0G offers a configurable carrier
mute feature, which is activated automatically if th e T V
sound standard is selected by means of the STANDARD SELECT register. If no FM carrier is detected at
one of the two MSP demodulator channels, the corresponding demodulator output is muted. This is indicated in the STATUS register.
Micronas9
Page 10
MSP 34x0GPRELIMINARY DATA SHEET
2.2.3. Preprocessing of Demodulator Signals
The NICAM signals must be processed by a deemphasis filter and adjusted in level. The analog demodulated signals must b e processed by a deemphas is filter, adjusted in level, and dematrixed. The correct
deemphasis filters are already selected by setting th e
standard in the STANDARD SELECT register. The
level adjustment has to be done by means of the FM/
AM and NICAM prescale registers. The necessary
dematrix function depends on the selected sound
standard and the actual broadcasted sound mode
(mono, stereo, or bilingual). It can be manually set by
the FM Matrix Mode register or automatically by the
Automatic Sound Selection.
2.2.4. Automatic Sound Select
In the Automatic Sound Select mode, the dematrix
function i s aut om a t ica l ly s el ec t ed ba se d on th e id ent if i cation information in the ST ATUS register. No I
2
C interaction is necessary when the broadcasted sound
mode changes (e.g. from mono to stereo).
The demodulator sup ports the identification ch eck by
switching between mono-compatible standards (standards that have the same FM-Mon o carrier) automatically and non-audible. If B/G-FM or B/G-NICAM is
selected, the MSP will switch between these standards. The same action is performed for the standards:
D/K1-FM, D/K2-FM, D/K3-FM and D/K-NICAM.
Switching is only d one in th e abse nce of a ny ste reo or
bilingual identification. If identification is found, the
MSP keeps the detected standard.
In case of high bit-error rates, the MSP 34x0G automatically falls back from digital NI CAM sound to analog FM or AM mono.
– “Stereo or A” channel: Analog or digital mono
sound, stereo if available. In case of bilingual broadcast, it contains language A (on left and right).
– “Stereo or B” channel: Analog or digital mono
sound, stereo if available. In case of bilingual broadcast, it contains language B (on left and right).
Fig. 2–2 and Table 2–2 show the source channel
assignment of the demodulated signals in case of
Automatic Sound Select mode for all sound standards.
Note: The analog primar y input channel contains the
signal of the mono FM/AM c arrie r or the L+R sig nal of
the MPX carrier. The secondary input channel contains the signal of the 2nd FM c arrier, the L-R signal of
the MPX carrier, or the SAP signal.
Source Select
LS Ch.
Matrix
Output-Ch.
matrices
must be set
once to
stereo.
primary
channel
secondary
channel
NICAM A
NICAM B
FM/AM
Prescale
NICAM
Prescale
Automatic
Sound
Select
FM/AM
Stereo or A/B
Stereo or A
Stereo or B
0
1
3
4
Fig. 2–2: Source channel assignment of demodulated
signals in Automatic Sound Select Mode
2.2.5. Manual Mo de
Fig. 2–3 shows the source channel assignment of
demodulated signals in ca se of manual mode. If manual mode is required, more information can be found in
Section 6.7. “Demodulator Source Channels in Manual
Mode” on page 95.
Table 2–1 summarizes all actions that take place when
Automatic Sound Select is switched on.
To provide more fl exibility, the Automatic Sound Select
block prepares four different source channels of
demodulated sound (Fi g. 2–2). By choosing one of the
four demodulator channels, the p referred sound mode
can be selected for each of the output chann els (loudspeaker, headphone, etc.). This is done by means of
primary
channel
secondary
channel
NICAM A
NICAM B
FM/AM
Prescale
NICAM
Prescale
FM-Matrix
FM/AM
NICAM
(Stereo or A/B)
0
1
Source Select
LS Ch.
Matrix
Output-Ch.
matrices
must be set
according to
the standard.
the Source Select registers.
The following source chan nels of demodulated sound
are defined:
Fig. 2–3: Source channel assignment of demodulated
signals in Manual Mode
– “FM/AM” channel: Analog mono sound, stereo if
available. In case of NICAM, analog mono only
(FM or AM mono).
– “Stereo or A/B” channel: Analog or digital mono
sound, stereo if available. In case of bilingual broadcast, it contains both languages A (left) and B
(right).
2.3. Preprocessing for SCART and
²
S Input Signals
I
The SCART and I
2
S inputs need only be a djusted in
level by means of the SCART and I
ters.
2
S prescale regi s-
10Micronas
Page 11
PRELIMINARY DATA SHEETMSP 34x0G
Table 2–1: Performed actions of the Automatic Sound Selection
Selected TV Sound StandardPerformed Actions
B/G-FM, D/K-FM, M-Korea,
and M-Japan
B/G-NICAM, L-NICAM, I-NICAM,
D/K-NICAM
Evaluation of the identification signal and automatic switching to mono, stereo, or bilingual. Preparing four
demodulator source channels according to Table 2–2.
Evaluation of NICAM-C-bits and automatic switching to mono, stereo, or bilingual. Preparing four
demodulator source channels according to Table 2–2.
In case of bad or no NICAM reception, the MSP switches automatically to FM/AM mono and switches
back to NICAM if possible. A hys teresis prevents periodical switching.
B/G-FM, B/G-NICAM
or
D/K1-FM, D/K2-FM, D/K3-FM,
and D/K-NICAM
Automatic searching for stereo/bilingual-identification in case of mono transmission. Automatic and nonaudible changes between Dual-FM and FM-NICAM standards while listening to the basic FM-mono sound
carrier.
Example: If starting with B/G-FM-Stereo, there will be a periodical alternation to B/G-NICAM in the
absence of FM-Stereo/Bilingual or NICAM-identification. Once an identification is detected, the MSP
keeps the corresponding standard.
BTSC-STEREO, FM RadioEvaluation of the pilot signal and automatic switching to mono or stereo. Preparing four demodulator
source channels according to Table2–2. Detection of the SAP carrier.
M-BTSC-SAPIn the absence of SAP, the MSP switches to BTSC-stereo if available. If SAP is detected, the MSP
switches automatically to SAP (see Table 2–2).
Table 2–2: Sound modes for the demodulator source channels with Automatic Sound Select
Source Channels in Automatic Sound Select Mode
Broadcasted
Sound
Standard
Selected
MSP Standard
3)
Code
Broadcasted
Sound Mode
FM/AM
(source select: 0)
Stereo or A/B
(source select: 1)
Stereo or A
(source select: 3)
Stereo or B
(source select: 4)
M-Korea
B/G-FM
D/K-FM
M-Japan
B/G-NICAM
L-NICAM
I-NICAM
D/K-NICAM
D/K-NICAM
(with high
deviation FM)
02
1)
03, 08
04, 05, 07, 0B
30
2)
08, 03
09
0A
2)
, 05
2)
0B, 04
0C, 0D
MONO MonoMonoMonoMono
1)
STEREOStereoStereoStereoStereo
BILINGUAL:
Languages A and BRight = B
NICAM not available or
analog Monoanalog Monoanalog Monoanalog Mono
Left = A
Right = B
AB
error rate too high
MONO analog MonoNICAM MonoNICAM MonoNICAM Mono
STEREOanalog MonoNICAM StereoNICAM StereoNICAM Stereo
BILINGUAL:
Languages A and B
analog MonoLeft = NICAM A
Right = NICAM B
NICAM ANICAM B
20, 21MONO MonoMonoMonoMono
STEREOStereoStereoStereoStereo
20MONO + SAPMonoMonoMonoMono
BTSC
21MONO + SAPLeft = Mono
STEREO + SAPStereoStereoStereoStereo
Right = SAP
STEREO + SAPLeft = Mono
Right = SAP
Left = Mono
Right = SAP
Left = Mono
Right = SAP
MonoSAP
MonoSAP
FM Radio40MONO MonoMonoMonoMono
STEREOStereoStereoStereoStereo
1)
The Automatic Sound Select process will automatically switch to the mono compatible analog standard.
2)
The Automatic Sound Select process will automatically switch to the mono compatible digital standard.
3)
The MSP Standard Codes are defined in (see Table 3–7 on page 21).
Micronas11
Page 12
MSP 34x0GPRELIMINARY DATA SHEET
−30−24−18−12−6
input level
−18
−24
output level
0
[dBr]
[dBr]
2.4. Source Selection and Output Channel Matrix
The Source Selec tor makes it possible to di stribute all
source signals (o ne of the demodulator source ch annels, SCART, or I
2
S input) to the desir ed output ch annels (loudspeaker, headphone, etc.). Al l inpu t and o utput signals can be processed simultaneously. Each
source channel is identified by a unique source
address.
For each output channel, the soun d mode can be set
to sound A, sound B, stereo, or mono by means of the
output channel matrix.
If Automatic Sound Select is on, the output channel
matrix can stay fixed to stereo (transparent) for demodulated signals.
2.5. Audio Baseband Processing
2.5.1. Automatic Volume Correction (AVC)
Different sound sources (e.g. terrestr ial chann els, SAT
channels, or SCART) fairly often do not have the same
volume level. Advertisements during movies usually
have a higher volume level than the movie itself. This
results in annoying volume changes. The Automatic
V olume Correction (AVC) solves this problem by equalizing the volume level.
To prevent clipping, the AVC’s gain decreases quickly
in dynamic boost conditions. To suppress oscillation
effects, the gain increases rather slowly for low level
inputs. The decay time is programmable by means of
the AVC register (see page 31).
2.5.2. Loudspeaker and Headphone Outputs
The following baseband features are implemented in
the loudspeaker and headphone output channels:
bass/treble, loudness, balan ce, and volume. A square
wave beeper can be added to the loudspeaker and
headphone channel. The loudspeaker channel additionally performs: equalizer (not simultaneously with
bass/treble), spatial effects, and a subwoofer crossover filter.
2.5.3. Subwoofer Output
The subwoofer signal is cre ated by combining the le ft
and right ch annels directly behind the loudness block
using the formula (L+R)/2. Due to the division by 2, the
D/A converter will not be overloaded, even with full
scale input signals. The subwoofer signal is fi ltered by
a third-order low-pass with programmable corner frequency followed by a level adjustment. At the loudspeaker channels, a complementary high-pass filter
can be switched on. Subwoofer and loudspeaker output use the same volume (Loudspeaker Volume Register).
2.5.4. Quasi-Peak Detector
The quasi-peak r eadout register can be used to read
out the quasi-peak level of any input source. The feature is based on following filter time constants:
attack time: 1.3 ms
decay time: 37 ms
For input signals ranging from −24 dBr to 0 dBr, the
AVC maintai ns a fixed output level of −18 dBr. Fig. 2–4
shows the AVC output level versus its input level. For
prescale and volume r egisters set to 0 dB, a level of
0 dBr corresponds to full scale input/output. This is
– SCART input/output 0 dBr = 2.0 V
rms
– Loudspeaker and Aux output 0 dBr = 1.4 V
Fig. 2–4: Simplified AVC characteristics
rms
12Micronas
Page 13
PRELIMINARY DATA SHEETMSP 34x0G
2.5.5. Micronas Dynamic Bass (MDB)
The Micronas Dynamic Bass system (MDB) extends
the frequency range of loudspeakers or headphones.
Amplitude (db)
After the adaption of MDB to the loudspeakers and the
cabinet, fur ther customizing of MDB a llows individual
fine tuning of the sound.
The MDB is placed in the subwoofer path. For applications without a subwoofer, the enhanced bass signal
can be added back onto the Left/Right chan nels (see
Fig. 2–1 on page 8). Micronas Dynamic Bass combines two effects: dynamic amplification and adding
harmonics.
2.5.5.1. Dynamic Amplification
Low frequency signals can be boosted while the output
signal amplitude is measu red. If the amplitude comes
close to a definable limit, the gain is reduced automatically in dynamic Volume mode. Therefore, the system
adapts to the signal amplitu de which is really present
at the output of the MSP device. Clipping effects are
avoided.
(db)
Amplitude
MDB_LIMIT
Signal Level
MDB_HP
Frequency
Fig. 2–6: Adding harmonics
2.5.5.3. MDB Parameters
Several parameters allow tuning the characteri stics of
MDB according to the TV loudspeaker, the cabinet,
and personal preferences (see Table 3–11). For more
detailed information on how to set up MDB, please
refer to the corresponding application note on the
Micronas homepage.
2.6. SCART Signal Routing
2.6.1. SCART DSP In and SCART Out Select
The SCART DSP Input Select and SCART Output
Select blocks include full matrix switching facilities. To
design a TV set with four pairs of SCART-inputs and
two pairs of SCART-outputs, no external switching
hardware is required. The switches are controlled by
the ACB user register (see page 39).
MDB_HPMDB_LP
SUBW_FREQ
Frequency
Fig. 2–5: Dynamic amplification
2.5.5.2. Adding Harmonics
MDB exploits the psychoacou stic phenomenon of the
‘missing fundamental’. Adding harmonics of the frequency components b elow the cutoff frequency gives
the impression of actually hearing the low frequency
fundamental. In other words: The listener has the
impression that a lo udspe aker sys tem see ms to repr oduce frequencies alt hou g physically not possi ble.
2.6.2. Stand-by Mode
If the MSP 34x0G is switched off by first pulling
STANDBYQ low and t hen (a fter >1 µs delay) switching
off DVSUP and AVSUP, but keeping AHVSUP
(‘Stand-by’-mode), the SCART switches maintain
their position and function. This allows the copying
from SCART-input to SCART-output in the TV set’s
stand-by mode.
In case of power on or starti ng from stand-by (switching on the DVSUP and AVSUP, RESETQ going high
2 ms later), all internal registers except th e ACB register (see page 39 ) are rese t to th e default conf iguration
(see Table 3–5 on page 18). The reset position of the
ACB register becomes active after the first I
2
C transmission into the Bas eband Processing par t. By transmitting the ACB register first, the reset state can be
redefined.
Micronas13
Page 14
MSP 34x0GPRELIMINARY DATA SHEET
2.7. I2S Bus Interface
The MSP 34x0G has a synchronous master/slave
input/output interface running on 32 kHz.
The interface accepts two formats:
2
S_WS changes at the word boundary
1. I
2
2. I
S_WS changes one I2S-clock period before the
word boundaries.
2
S options are set by means of the MO DUS and
All I
the I2S_CONFIGURATION registers.
2
S bus interface consists of five pins:
The I
– I 2 S _ D A _ I N 1 , I 2 S _ D A _ I N 2 :
2
I
S serial data input: 16, 18....32 bits per sample
– I2S_DA_OUT:
2
I
S serial data output: 16, 18...32 bits per sample
– I2S_CL:
2
I
S serial clock
– I2S_WS:
2
I
S word strobe signal defines the left and right
sample
If the MSP 34x0G serves as the master on the I
2
interface, the clock and word strobe lines are driven by
the IC. In this mode, only 16 or 32 bits per sample can
be selected. In slave mode, these lines are input to the
IC and the MSP clock is synchronized to 576 times the
I2S_WS rate (32 kHz). NICAM o peration is not possible in slave mode.
2
S timing diagram is shown in Fig. 4–28 on
An I
page 67.
2.8. ADR Bus Interface
For the ASTRA Digital Radio System (ADR), the
MSP 3400G, MSP 3410G, and MS P 3450G performs
preprocessing such as carrier selection and filtering.
Via the 3-line ADR-bus, the resulting signals are transferred to the DRP 3510A coprocessor, where the
source decoding is per formed. To be prepared for an
upgrade to ADR with an additional DRP board, the following lines of MSP 34x0G should be provided on a
feature connector:
For more details, please refer to the DRP 35 10A data
sheet.
2.9. Digital Control I/O Pins and
Status Change Indication
S
The static level of the digital input/output pins
D_CTR_I/O_0/1 is switchable between HIGH and
LOW via the I
(see page 39). This enables the control ling of exter nal
hardware switches or other devices via I
2
C-bus by means of the ACB register
2
C-bus.
The digital input/outpu t pins can be set to hig h impedance by means of the MODUS register (see page 24).
In this mode, the pi ns can be used as input. The current state can be read o ut of the STATUS register (see
page 26).
Optionally, the pin D_CTR_I/O_1 can be used as an
interrupt request signa l to the c ontrol ler, indicating any
changes in the read register STATUS. This makes polling unnecessary, I
2
C bus interactions are reduced to a
minimum (see STATUS register on page 26 and
MODUS register on page 24).
2.10. Clock PLL Oscillator and Crystal Specifications
The MSP 34x0G derives all internal system clocks
from the 18.432 MHz oscillator. In NICAM or in I
2
SSlave mode, the clock is phase-locked to the corresponding source. Therefore, it is not possible to use
NICAM and I
2
S-Slave mode at the same time.
For proper performance, the MSP clock oscillator
requires a 18.432 MHz crystal. Note that for the
phase-locked modes (NICAM, I
2
S-Slave), crystals with
tighter tolerance are required.
14Micronas
Page 15
PRELIMINARY DATA SHEETMSP 34x0G
3. Control Interface
2
C Bus Interface
3.1. I
The MSP 34x0G is controlled via the I
2
C bus slave
interface.
The IC is selected by transmitting one of the
MSP 34x0G device addresses. In order to allow up to
three MSP ICs to be connected to a single bus, an
address select pin (ADR_SEL) has been implemented.
With ADR_SEL pulled to high, low, or left open, the
MSP 34x0G responds to different device address es. A
device address pair is defined as a write address and a
read address (see Table 3–1).
Writing is done by sending the write device address,
followed by the subaddress byte, two address bytes,
and two data bytes.
Reading is done by sending the wr ite device address,
followed by the subaddress byte and two address
bytes. Without sending a stop c ondi tion, r ea din g of t he
addressed data is completed by sending the device
read address and reading two bytes of data.
2
Refer to Section 3.1.3. for the I
Section 3.4. “Programming T ips” on page 41for proposals of MSP 34x0G I
2
C telegrams. See Table 3–2
C bus protocol and to
for a list of available subaddresses.
response time is about 0.3 ms. If the MSP cannot
accept another byte of data (e.g. while servicing an
internal int err upt), it ho lds th e clock line I2C_CL l ow to
force the transmitter into a wait state. The I
Master must read back the clock line to detect when
the MSP is ready to r ecei ve the next I
2
C transmission.
2
C Bus
The positions within a transmission where this may
happen are indicated by ’Wait’ in Section 3.1.3. The
maximum wait period of the MSP during normal operation mode is less than 1 ms.
3.1.1. Inte rn al Hardware Error Handling
In case of any hardware problems (e.g. interruption of
the power supply of the MSP), the MSP’s wait period is
extended to 1.8 ms. After this time period elapses, the
MSP releases data and clock lines.
Indication and solving the error status:
To indicate the error status, the remaining acknowledge bits of the actual I
Additionally, bit[14] of CONTROL is set to one. The
MSP can then be r eset via the I
2
C-protocol will be left high.
2
C bus by transmitting
the RESET condition to CONTROL.
Indication of reset:
Besides the possibility of hardware reset, the MSP can
also be reset by means of the RE SET bit in the CONTROL register by the controller via I
Due to the architecture o f the MS P 34x0G, the IC cannot react immediately to an I
Table 3–1: I
ADR_SELLow
ModeWriteReadWriteReadWriteRead
MSP device address80
2
C Bus Device Addresses
2
C bus.
2
C request. The typical
(connected to DVSS)
hex
81
hex
Any reset, even caused by an unstable reset line etc.,
is indicated in bit[15] of CONTROL.
2
A general timing diagram of the I
C bus is shown in
Fig. 4–27 on page 65.
(connected to DVSUP)
84
hex
High
85
hex
88
hex
Left Open
89
Table 3–2: I2C Bus Subaddresses
NameBinary ValueHex ValueModeFunction
CONTROL0000 000000Read/WriteWrite: Software reset of MSP (see Table 3–3)
Read: Hardware error status of MSP
WR_DEM0001 000010Writewrite address demodulator
hex
RD_DEM0001 000111Writeread address demodulator
WR_DSP0001 001012Writewr i te address DSP
RD_DSP0001 001113Writeread address DSP
Reading of CONTROL will reset the bits[15,14] of CONTROL. After Powe r-on,
bit[15] of CONTROL will be set; it must be
read once to be reset.
3.1.3. Protocol Description
Write to DSP or Demodulator
Swrite
device
address
Wait
ACK sub-addr ACK addr-byte
high
ACK addr-byte
low
ACK data-byte
high
ACK data-byte
low
ACK P
Read from DSP or Demodulator
Swrite
device
address
Wait
ACK sub-addr ACK addr-byte
high
ACK addr-byte
low
ACK Sread
device
address
Wait
ACK data-byte-
high
ACK data-byte
Write to Control Register
Swrite
device
address
Wait
ACK sub-addr ACK data-byte
high
ACK data-byte
low
ACK P
Read from Control Register
Swrite
device
address
Wait
Note: S = I
P = I
ACK00hexACK Sread
2
C-Bus Start Condition from master
2
C-Bus Stop Condition from master
device
address
Wait
ACK data-byte-
high
ACK data-byte
low
NAK P
ACK = Acknowledge-Bit: LOW on I2C_DA from slave (= MSP, light gray) or master (= controller, dark gray)
NAK = Not Acknowledge-Bit: HIGH on I2C_DA from master (dark gray) to indicate ‘End of Read’
or from MSP indicating internal error state
2
Wait = I
C-Clock line is held low, while the MSP is processing the I2C command.
This waiting time is max. 1 ms
NAK P
low
16Micronas
Page 17
PRELIMINARY DATA SHEETMSP 34x0G
I2C_DA
1
0
SP
I2C_CL
Fig. 3 –1: I2C bus protocol (MSB first; data must be stable while clock is high)
3.1.4. Proposals for General MSP 34x0G
2
I
C Telegrams
3.1.4.1. Symbols
3.2. Start-Up Sequence:
Power-Up and I
After POWER-ON or RE SET (s ee F ig. 4–26), the IC is
in an inactive state. All registers are in the Res et posi-
tion (see Table 3–5 and Table 3–6), the analog outputs
are muted. The controll er has to initialize all register s
for which a non-default setting is necessary.
, 84
>Stop Condition
aaAddress Byte
ddData Byte
3.3. MSP 34x0G Programming Interface
2
C-Controlling
3.1.4.2. Write Telegrams
<daw 00 d0 00>write to CONTROL register
<daw 10 aa aa dd dd>write data into demodulator
<daw 12 aa aa dd dd>write data into DSP
3.1.4.3. Read Telegrams
<daw 00 <dar dd dd>read data from
CONTROL register
<daw 11 aa aa <dar dd dd> read data from demodulator
<daw 13 aa aa <dar dd dd> read data from DSP
The MSP 34x0G is control led by means of user r egisters. The complete list of all user regist ers ar e given in
Table 3–5 and Table 3–6. The registers are par titioned
into the Demodulator section (Subaddress 10
writing, 11
ing sections (Subaddress 12
for reading) and the Baseband Process -
hex
for writing, 13
hex
hex
hex
for
for
reading).
Write and rea d registers are 16 bit wide, whereby the
MSB is denoted bit[15]. Transmissions via I
2
C bus have
to take place in 16-bit words (two byte transfers, with the
most significant byte transferred first). All write register s,
except the demodulator write registers are readable.
Unused parts of the 16-bit write registers must be zero.
Addresses not given in this table must not be
accessed.
For reasons of software compatibility to the
MSP 34xxD, a Manual/Compatibility Mode is available.
More read and wri te registers toge ther with a detailed
description can be found in “Appendix B: Manual/Compatibility Mode” on page 81.
More examples of typical application protocols are
listed in Section 3.4. “Programming Tips” on page 41.
Micronas17
Page 18
MSP 34x0GPRELIMINARY DATA SHEET
Table 3–5: List of MSP 34x0G Write Registers
Write RegisterAddress
(hex)
I2C Subaddress = 10
; Registers are not readable
hex
BitsDescription and Adjustable RangeResetSee
Page
STANDARD SELECT00 20[15:0]Initial Programming of the Demodulator 00 0022
2
MODUS00 30[15:0]Demodulator, Automatic and I
2
I
S CONFIGURATION00 40[15:0]Configuration of I2S options00 0025
I2C Subaddress = 12
; Registers are all readable by using I2C Subaddress = 13
hex
hex
S options00 0024
Volume loudspeaker channel00 00[15:8][+12 dB ... −114 dB, MUTE]MUTE30
Volume / Mode loudspeaker channel[7:0]1/8 dB Steps,
STANDARD RESULT00 7E[15:0]Result of Automatic Standard Detection (see Table3–8 on page 23)26
STATUS02 00[15:0]Monitoring of inter nal settings e.g. Stereo, Mono, Mute etc. . 26
I2C Subaddress = 13
Quasi peak readout left00 19[15:0][00
Quasi peak readout right00 1A[15:0][00
MSP hardware version code00 1E[15:8][00
MSP major revision code[7:0][00
MSP product code00 1F[15:8][00
MSP ROM version code[7:0][00
; Registers are not writable
hex
... 7FFF
hex
... 7FFF
hex
... FF
hex
... FF
hex
... FF
hex
... FF
hex
]16 bit tw o’s complement40
hex
]16 bit tw o’s complement40
hex
]40
hex
]40
hex
]40
hex
]40
hex
20Micronas
Page 21
PRELIMINARY DATA SHEETMSP 34x0G
3.3.2. Description of User Registers
Table 3–7: Standard Codes for STANDARD SELECT register
Standard Detection, for China
00 20BTSC-Stereo4.5 3420, -40, -50
00 21BTSC-Mono + SAP
00 30M-EIA-J Japan Stereo4.5
00 40FM-Stereo Radio with 75 µs Deemphasis10.7
00 50SAT-Mono (s . Table 6–18)6.53400, -10, -50
00 51SAT-Stereo (s. Table 6–18)7.02/7.20
00 60SAT ADR (Astra Digital Radio)6.12
1)
In case of Automatic Sound Select, the B/G-codes 3
2)
In case of Automatic Sound Select, the D/K-codes 4
3)
HDEV3: Max. FM deviation must not exceed 540 kHz
4)
HDEV2: Max. FM deviation must not exceed 360 kHz
hex
hex
and 8
, 5
hex
are equivalent.
hex
, 7
and B
hex
are equivalent.
hex
Micronas21
Page 22
MSP 34x0GPRELIMINARY DATA SHEET
3.3.2.1. STANDARD SELECT Register
The TV sound standar d of the MSP 34x0G demodulator is determined by the STANDARD SELECT register.
There are two ways to use the STANDARD SELECT
register:
– Setting up the demodulator for a TV sound standard
by sending the corresponding standard code with a
single I
– Starting the Automatic Standard Detection for ter-
restrial TV standards. This is the most comfortable
way to set up the demodulator. Within 0.5 s, the
detection and setup of the actual TV sound standard
is performed. The detected standard can be read
out of the STANDARD RESULT register by the control processor. This feature is recommended for the
primary setup of a TV set. Outputs should be muted
during Automatic Standard Detection.
The Standard Codes are listed in Table 3–7.
Selecting a TV sound standard via the STANDARD
SELECT register initializes the demodulator. This
includes: AGC-settings and carrier mute, tuning frequencies, FIR-filter set tings, demodulation mode ( FM,
AM, NICAM), deemphasis and identification mode.
TV stereo sound standa rds that are unavailable for a
specific MSP version are processed in analog mono
sound of the standard. In that cas e, stereo or bilingual
processing will not be possible.
For a complete setup of the TV sound processing from
analog IF input to the source selection, the transmissions as shown in Section 3.5. are necessary.
2
C bus transmission.
3.3.2.2. Refresh of STANDARD SELECT Register
A general refresh o f th e S TANDARD SELECT register
is not allowed. However, the following method
enables watching the MSP 34x0G “alive” status and
detection of accidental resets (only versions B6 and
later):
– After Power-on, bit[15] of CONTROL will be set; it
must be read once to enable the reset-detection
feature.
– Reading of the CONTROL register and checking
the reset indicator bit[15] .
– If bit[15] is “0”, any refresh of the STANDARD
SELECT register is not allowed.
– If bit[15] is “1”, indicating a reset, a refresh of the
STANDARD SELECT register and all other MSPG
registers is required.
3.3.2.3. STANDARD RESULT Register
If Automatic Standard Detection is selected in the
STANDARD SELECT regi ster, status and result o f the
Automatic Standard Detection process can be read out
of the STANDARD RESULT register. The possible
results are based on the mentioned Standard Code
and are listed in Table 3–8.
In cases where n o sound st andard h as been detected
(no standard present, too mu ch noise, strong interferers, etc.) the STANDARD RESULT register contains
00 00
actions (for example set the standard according to a
preference list or by manual input).
. In that case, the controller has to start further
hex
For reasons of software compatibility to the
MSP 34xxD, a Manual/Compatibility mode is available.
A detailed description of this mode can be found on
page 81.
As long as the STANDA RD RESULT register contains
a value greater than 07 FF
Detection is still active. During this period, the MODUS
and STANDARD SELECT register must no t be written.
The STATUS register will be updated when the Automatic Standard Detection has finished.
If a present sound standard is unavailable for a specific
MSP-version, it detects and switches to the analog
mono sound of this standard.
Example:
The MSPs 3420G and 3440G will detect a B/G-NICAM
signal as standa rd 3 a nd will switch to the analog FMMono sound.
, the Automatic Standard
hex
22Micronas
Page 23
PRELIMINARY DATA SHEETMSP 34x0G
Table 3–8: Results of the Automatic Standard
Detection
Broadcasted Sound
Standard
Automatic Standard
Detection could not
STANDARD RESULT Register
Read 007E
0000
hex
hex
find a sound standard
B/G-FM0003
B/G-NICAM0008
I000A
FM-Radio0040
M-Korea
M-Japan
M-BTSC
L-AM
D/K1
D/K2
D/K3
L-NICAM
D/K-NICAM
0002
0020
0030
0009
0004
0009
000B
hex
hex
hex
hex
(if MODUS[14,13]=00)
hex
(if MODUS[14,13]=01)
hex
(if MODUS[14,13]=10)
hex
(if MODUS[12]=0)
hex
(if MODUS[12]=1)
hex
(if MODUS[12]=0)
hex
(if MODUS[12]=1)
hex
Automatic Standard
Detection still active
>07FF
hex
Micronas23
Page 24
MSP 34x0GPRELIMINARY DATA SHEET
3.3.2.4. Write Registers on I2C Subaddress 10
Table 3–9: Write registers on I2C subaddress 10
Register
FunctionName
Address
00 20
hex
STANDARD SELECTION Register
Defines TV-Sound or FM-Radio Standard
bit[15:0]00 01
00 02
start Automatic Standard Detection
hex
MSP Standard Codes (see Table 3–7)
hex
...
hex
00 30
hex
00 60
MODUS Register
Preference in Automatic Standard Detection:
bit[15]0undefined, must be 0
bit[14:13]detected 4.5 MHz carrier is interpreted as:
0standard M (Korea)
1standard M (BTSC)
2standard M (Japan)
3chroma carrier (M/N standards are ignored)
bit[12]detected 6.5 MHz carrier is interpreted as:
0standard L (SECAM)
1standard D/K1, D/K2, D/K3, or D/K NICAM
hex
hex
STANDARD_SEL
MODUS
1)
1)
General MSP 34x0G Options
bit[11:9]0undefined, must be 0
bit[8]0/1ANA_IN1+/ANA_IN2+; select analog sound IF input pin
bit[7]0/1active/tristate state of audio clock output pin
AUD_CL_OUT
2
bit[6]I
S word strobe alignment
0WS changes at data word boundary
1WS changes one clock cycle in advance
bit[5]0/1master/slave mode of I
2
S interface (must be set to 0
(= Master) in case of NICAM mode)
bit[4]0/1active/tristate state of I
2
S output pins
bit[3]state of digital output pins D_CTR_I/O_0 and _1
0active: D_CTR_I/O_0 and _1 are output pins
(can be set by means of the ACB register.
see also: MODUS[1])
1tristate: D_CTR_I/O_0 and _1 are input pins
(level can be read out of STATUS[4,3])
bit[2]0undefined, must be 0
bit[1]0/1disable/enable STATUS change indication by means of
Valid at the next start of Automatic Standard Detection.
24Micronas
Page 25
PRELIMINARY DATA SHEETMSP 34x0G
2
Table 3–9: Write registers on I
C subaddress 10
, continued
hex
Register
Address
00 40
hex
FunctionName
I2S CONFIGURATION Register
I2S_CONFIG
bit[15:1]0not used, must be set to “0”
bit[0]I2S_CL frequency and I
2
S data sample length for
master mode
02 x 16 bit (1.024 MHz)
12 x 32 bit (2.048 MHz)
Micronas25
Page 26
MSP 34x0GPRELIMINARY DATA SHEET
3.3.2.5. Read Registers on I2C Subaddress 11
hex
Table 3–10: Read Registers on I2C Subaddress 11
Register
FunctionName
Address
00 7E
hex
STANDARD RESULT Register
Readback of the detected TV sound or FM-Radio Standard
bit[15:0]00 00
Automatic Standard Detection could not find
hex
a sound standard
00 02
MSP Standard Codes (see Table 3–8 on page 23)
hex
...
02 00
hex
00 40
>07 FF
STATUS Register
hex
Automatic Standard Detection still active
hex
Contains all user relevant internal information about the status of the MSP
bit[15:10]undefined
bit[8]0/1“1” indicates bilingual sound mode or SAP present
(internally evaluated from received analog or digital
identification signa ls)
hex
STANDARD_RES
STATUS
bit[7]0/1“1” indicates independent mono sound (only for
NICAM)
bit[6]0/1mono/s ter eo ind icati on
(internally evaluated from received analog or digital
identification signa ls)
bit[5,9]00analog sound standard (FM or AM) active
01this pattern will not occur
10digital sound (NICAM) available
11bad reception condition of digital sound (NICAM) due
to:
a. high error rate
b. unimplemented sound code
c. data transmission only
bit[4]0/1low/high level of digital I/O pin D_CTR_I/O_1
bit[3]0/1low/high level of digital I/O pin D_CTR_I/O_0
bit[2]0detected secondary carrier (2nd A2 or SAP sub-carrier)
1no secondary carrier detected
bit[1]0detected primary carrie r (Mono or MPX carrier)
1no primary carrier detected
bit[0]undefined
If STATUS change indication is activated by means of MODUS[1]: Each
change in the STATUS register sets the digit al I/O pin D_CTR_I/O_1 to high
level. Reading the STATUS register resets D_CTR_I/O_1.
26Micronas
Page 27
PRELIMINARY DATA SHEETMSP 34x0G
3.3.2.6. Write Registers on I2C Subaddress 12
hex
Table 3–11: Write Registers on I2C Subaddress 12
Register
FunctionName
Address
PREPROCESSING
00 0E
hex
FM/AM Prescale
bit[15:8]00
hex
Defines the input prescale gain for the demodulated
...FM or AM signal
7F
hex
00
hex
off (RESET condition)
For all FM modes except satel lite FM a nd AM-m ode, the com binations of pre scale value and FM deviation listed below lead to internal full scale.
FM mode
bit[15:8]7F
48
30
24
18
13
hex
hex
hex
hex
hex
hex
28 kHz FM deviation
50 kHz FM deviation
75 kHz FM deviation
100 kHz FM deviation
150 kHz FM deviation
180 kHz FM deviation (limit)
hex
PRE_FM
FM high deviation mode (HDEV2, MSP Standard Code = C
bit[15:8]30
14
hex
hex
150 kHz FM deviation
360 kHz FM deviation (limit)
hex
)
FM very high deviation mode (HDEV3, MSP Standard Code = 6 and D
bit[15:8]20
1A
hex
hex
450 kHz FM deviation
540 kHz FM deviation (limit)
Satellite FM with adaptive deemphasis
bit[15:8]10
hex
recommendation
AM mode (MSP Standard Code = 9)
bit[15:8]7C
hex
recommendation for SIF input levels from
0.1 V
to 0.8 V
pp
pp
(Due to the AGC being switched on, the AM-output level
remains stable and independent of the actual SIF-level in
the mentioned input range)
hex
)
Micronas27
Page 28
MSP 34x0GPRELIMINARY DATA SHEET
2
Table 3–11: Write Registers on I
C Subaddress 12
, continued
hex
Register
Address
(continued)
00 0E
hex
00 10
hex
FunctionName
FM Matrix Modes
FM_MATRIX
Defines the dematrix function for the demodulated FM signal
bit[7:0]00
01
02
03
hex
hex
hex
hex
no matrix (used f or b ili ng ua l an d unma t rixed stereo sound)
German stereo (Standard B/G)
Korean stereo (also used for BTSC, EIA-J and FM Radio)
sound A mono (left and right channel contain the mono
sound of the FM/AM mono carrier)
04
hex
sound B mono
In case of Automatic Sound Select = on, the FM Matrix Mode is set auto mat ically. Writing to the FM/AM prescale register (00 0E
In order not to disturb th e automatic process, the low par t of any I
high part) is still allowed.
hex
2
C transmission to this reg ister is ignor ed. Therefore, any FM-Matr ix readback values may
differ from data written previously.
In case of Automatic Sound Select = off, the FM Matrix Mode must be set as
shown in Table 6–17 of Appendix B.
To enable a Forced Mono Mode set A2 THRESHOLD as described in
Section 6.3.2.on page 85
NICAM Prescale
PRE_NICAM
00 16
00 12
00 0D
hex
hex
hex
Defines the input prescale value for the digital NICAM signal
bit[15:8]00
hex
... 7F
prescale gain
hex
examples:
00
20
5A
7F
hex
hex
hex
hex
off
0dB gain
9 dB gain (recommendation)
+12 dB gain (maximum gain)
I2S1 Prescale
I2S2 Prescale
Defines the input prescale value for digital I
bit[15:8]00
hex
... 7F
prescale gain
hex
2
S input signals
examples:
00
10
7F
hex
hex
hex
off
0 dB gain (recommendation)
+18 dB gain (maximum gain)
SCART Input Prescale
Defines the input prescale value for the analog SCART input signal
bit[15:8]00
hex
... 7F
prescale gain
hex
examples:
00
19
7F
hex
hex
hex
off
0dB gain (2 V
input leads to digital full scale)
RMS
+14 dB gain (400 mV
input leads to digital full scale)
RMS
PRE_I2S1
PRE_I2S2
PRE_SCART
28Micronas
Page 29
PRELIMINARY DATA SHEETMSP 34x0G
2
Table 3–11: Write Registers on I
C Subaddress 12
, continued
hex
Register
FunctionName
Address
SOURCE SELECT AND OUTPUT CHANNEL MATRIX
Source for:
00 08
00 09
00 0A
00 41
00 0B
00 0C
hex
hex
hex
hex
hex
hex
Loudspeaker Output
Headphone Output
SCART1 DA Output
SCART2 DA Output
2
S Output
I
Quasi-Peak Detector
bit[15:8]0“FM/AM”: demodulated FM or AM mono signal
1“Stereo or A/B”: demodulator Stereo or A/B signal
(in manual mode, this source is identical to the NICAM
source in the MSP 3410D)
3“Stereo or A”: demodulator Stereo Sound or
Language A (only defined for Automatic Sound Select)
4“Stereo or B”: demodulator Stereo Sound or
Language B (only defined for Automatic Sound Select)
2SCART input
5I
6I
Loudspeaker Output
Headphone Output
SCART1 DA Output
SCART2 DA Output
2
S Output
I
Quasi-Peak Detector
bit[7:0]00
10
20
30
hex
hex
hex
hex
Sound A Mono (or Left Mono)
Sound B Mono (or Right Mono)
Stereo (transparent mode)
Mono (sum of left and right inputs divided by 2)
special modes are available (see Section 6.5.1. on page 93)
In Automatic Sound Select mode, the demodulator source channels are set
according to Table 2–2. Therefore, the matrix modes of th e corresponding output channels should be set to “Stereo” (transparent).
Mute (reset condition)
Fast Mute (needs about 75 ms until the signal is
completely ramped down)
bit[7:5]higher resolution volume table
0+0dB
1+0.125 dB increase in addition to the volume table
...
7+0.875 dB increase in addition to the volume table
VOL_MAIN
VOL_AUX
bit[4]0must be set to 0
bit[3:0]clipping mode
0reduce volume
1reduce tone control
2compromise
3dynamic
With large scale inp ut signals, positive volume settings may lead to signal clipping.
The MSP 34x0G loudspea ker and headp hone volume fu nction is divided in to a
digital and an analog sectio n. With Fast Mute, volume is reduced to mute position by digital volume only. Analog volume is not changed. This reduces any
audible DC plops. To turn volume on again, the volume step that has been used
before Fast Mute was activated must be transmitted.
If the clipping mode is set to “reduce volume”, the following rule is used: T o prevent severe clipping effects with bass, treble, or equalizer boosts, the internal
volume is automatically limited to a level where, in combination with either bass,
treble, or equalizer setting, the amplification does not exceed 12 dB.
If the clipping mode is “reduce tone control”, the bass or treble value is
reduced if ampli fication exceeds 12 dB. If the e quali zer is switched on , th e gain
of those bands is reduced, where amplific ation together with volume exceeds
12 dB.
If the clipping mode is “compromise”, the bass or tr eble value and volume a re
reduced half and half i f amp li fic ati on exceeds 12 dB. If the equalizer is switched
on, the gain of those bands is reduced half and half, where amplification
together with volume exceeds 12 dB.
If the clipping mode is “dynamic”, volume is re duced autom aticall y if the signal
amplitudes would exceed −2 dBFS within the IC. For operation of MDB, dyna-
8 sec decay time
4 sec decay time
2 sec decay time
20 ms decay time (should be used for approx. 100 ms
AVC
after channel change)
Note: AVC should not be used in any Dolby Prologic mode (with DP L 35xx),
except in PANORAMA or 3D-PANORAMA mode, when only the loudspeaker
output is active.
Positive balance settings reduce the left channel without affecting the right
channel; negative settings reduce the right channel leaving the left channel
unaffected.
Micronas31
Page 32
MSP 34x0GPRELIMINARY DATA SHEET
2
Table 3–11: Write Registers on I
C Subaddress 12
, continued
hex
Register
Address
00 20
hex
00 02
hex
00 31
hex
FunctionName
Tone Control Mode Loudspeaker Channel
bit[15:8]00
FF
hex
hex
bass and treble is active
equalizer is active
TONE_MODE
Defines whether Bass/Treble or Equalizer is activated for the loudspeaker channel. Bass and Eq ual izer c ann ot work simultaneously. If Equalizer is used, Bass,
and Treble coefficients must be set to zero and vice versa.
Bass Loudspeaker Channel
Bass Headphone Channel
BASS_MAIN
BASS_AUX
bit[15:8]extended range
7F
78
70
68
hex
hex
hex
hex
+20 dB
+18 dB
+16 dB
+14 dB
normal range
60
58
hex
hex
+12 dB
+11 dB
...
08
00
F8
hex
hex
hex
+1dB
0dB
−1dB
...
A8
A0
hex
hex
−11 dB
−12 dB
Higher resolution is pos sible: an LSB step in the nor mal range r esults in a g ain
step of about 1/8 dB, in the extended range about 1/4 dB.
With positive bass settings, internal clipping may occur even with overall volume
less than 0 dB. This will lead to a clipped ou tput signal. Therefore, it is not recommended to set bass to a value tha t, in conjunct ion with volume, would result
in an overall positive gain.
Higher resolution is possible: an LSB step results in a gain step of about 1/8 dB.
With positive treble settings, inter nal clipping may occur even with overall vol-
ume less than 0 dB. This will lead to a clipped output si gnal. Therefore, it is not
recommended to set treble to a value that, in conjun ction with volume, would
result in an overall positive gain.
Equalizer Loudspeaker Channel Band 1 (below 120 Hz)
Equalizer Loudspeaker Channel Band 2 (center: 500 Hz)
Equalizer Loudspeaker Channel Band 3 (center: 1.5 kHz)
Equalizer Loudspeaker Channel Band 4 (center: 5 kHz)
Equalizer Loudspeaker Channel Band 5 (above: 10 kHz)
Higher resolution is possible: an LSB step results in a gain step of about 1/8 dB.
With positive equalizer settings, internal clipping may occur even with overall
volume less than 0 dB. This will lead to a c lipped output s ignal. Therefore, it is
not recommended to set equalizer bands to a value that, in conjunction with volume, would result in an overall positive gain.
normal (constant volume at 1 kHz)
Super Bass (constant volume at 2 kHz)
Higher resolutio n of Loudness Gain i s possible: An LSB step results in a g ain
step of about 1/4 dB.
Loudness increas es the volume of low- an d hi gh-fr equ enc y si gna ls, whil e keeping the amplitud e of the reference frequency c onstant. The intended l oudness
has to be set according to the actual volume setting. Because loudnes s introduces gain, it is not recommended to set loudness to a value that, in conjunction
with volume, would result in an overall positive gain.
The corner frequency for bass amplification can be set to two different values. In
Super Bass mode, the corner frequency is sh ift ed up. The poin t of c ons tan t volume is shifted from 1 kHz to 2 kHz.
34Micronas
Page 35
PRELIMINARY DATA SHEETMSP 34x0G
2
Table 3–11: Write Registers on I
C Subaddress 12
, continued
hex
Register
Address
00 05
hex
FunctionName
Spatial Effects Loudspeaker Channel
SPAT_MAIN
bit[15:8]Effect Strength
7F
3F
hex
hex
Enlargement 100%
Enlargement 50%
...
01
00
FF
hex
hex
hex
Enlargement 1.5%
Effect off
reduction 1.5%
...
C0
80
hex
hex
reduction 50%
reduction 100%
bit[7:4]Spatial Effect Mode
0
hex
Stereo Basewidth Enlargement (SBE) and
Pseudo Stereo Effect (PSE). (Mode A)
2
hex
Stereo Basewidth Enlargement (SBE) only. (Mode B)
bit[3:0]Spatial Effect High-Pass Gain
0
hex
2
hex
4
hex
6
hex
8
hex
max. high-pass gain
2/3 high-pass gain
1/3 high-pass gain
min. high-pass gain
automatic
There are several spatial effect modes available:
In mode A (low byte = 00
), the spatial effect depends on the sou rce mode. If
hex
the incoming signal is mono, Pseudo Stere o Effect is active; for stereo s ignals,
Pseudo Stereo Effect and Stereo Basewidth Enlargement is effective. The
strength of the effect is controllable by the upper byte. A negative value reduces
the stereo image. A strong spatial effect is recommended for small TV sets
where loudspeaker spacing is rather close. For large screen TV se ts, a more
moderate spatial effect is recommended.
In mode B, only Stereo Basewidth Enla rgement is effective. For mono input signals, the Pseudo Stereo Effect has to be switched on.
It is worth mentioning, that all spatial effects affect amplitude and phase
response. With the lower 4 bits, the fre quency respon se can be customized. A
value of 0
function for L or R only signals. A value of 6
only signals, but a low-pass function for center signals. By u sing 8
yields a flat r esponse for center signals (L = R), but a high-pass
hex
has a flat respons e for L or R
hex
, the fre-
hex
quency response is automatically adapted to the sound material by choosing an
optimal high-pass gain.
Micronas35
Page 36
MSP 34x0GPRELIMINARY DATA SHEET
2
Table 3–11: Write Registers on I
C Subaddress 12
, continued
hex
Register
FunctionName
Address
SUBWOOFER OUTPUT CHANNEL
00 2C
hex
Subwoofer Level Adjustment
bit[15:8]0C
hex
+12 dB
...
01
00
FF
hex
hex
hex
+1 dB
−1dB
...
E3
E2
hex
hex
−29 dB
−30 dB
...
80
bit[7:0]00
hex
hex
Mute
must be zero
If MDB is added onto the main channel, this register should be set to 00
00 2D
hex
Subwoofer Corner Frequency
bit[15:8]5...40corner frequency in 10 Hz steps
(range: 50...400 Hz)
If MDB is active, SUBW_FREQ must be set to a value higher than the MDB Lowpass
Frequency (MDB_LP). Choosing the corner frequency of the subwoofer closer to
MDB_LP results in a narrower MDB frequency range. Recommended value:
1.5×MDB_LP
SUBW_LEVEL
0 dB (default)
hex
SUBW_FREQ
Subwoofer Complementary High-Pass Filter
bit[7:0]00
01
02
hex
hex
hex
MDB CONTROL REGISTERS
00 68
hex
MDB Effect Strength
bit[15:8]00
bit[7:0]00
7F
hex
hex
hex
The MDB effect strength can be adjusted in 1dB steps. A value of 44
a medium MDB effect.
00 69
hex
MDB Amplitude Limit
bit[15:8]00
FF
hex
hex
...
E0
hex
bit[7:0]00
hex
The MDB Amplitude Limit defines the maximum allowed amplitude at the output
of the MDB relative to 0 dbFS. If the amplitu de exceeds MDB_LIM, the gain o f
the MDB is automatically reduced. Note that the Volume Clipping Mode must be
set to “dynamic” (see page 30).
loudspeaker channel unfilte re d
a complementary high-pass is processed in the loudspeaker output channel
MDB added onto main channel
MDB OFF (default)
maximum MDB
must be zero
0 dB F S (default limitation)
−1dBFS
−32 dBFS
must be zero
will yield
hex
SUBW_HP
MDB_STR
MDB_LIM
36Micronas
Page 37
PRELIMINARY DATA SHEETMSP 34x0G
2
Table 3–11: Write Registers on I
C Subaddress 12
, continued
hex
Register
Address
00 6A
hex
00 6B
hex
FunctionName
MDB Harmonic Content
bit[15:8]00
bit[7:0]00
no harmonics are added (default)
64
7F
hex
hex
hex
hex
50% fundamentals + 50% harmonics
100% harmonics
must be zero
MDB_HMC
MDB creates har moni cs of the fr equen cies below the MDB highp ass freq uency
(MDB_HP). The variable MDB_HMC describes the ratio of the harmonics
towards the original signal.
MDB Low Pass Corner Frequency
MDB_LP
bit[15:8]550 Hz
660Hz
...
30300 Hz
bit[7:0]00
must be zero
hex
The MDB lowpass cor ner frequenc y (range 50... 300 Hz) defines the upper co rner frequency of the MDB band pass filte r. Recommended values are th e same
as for the MDB highpass corner frequency (MDB_HP).
00 6C
hex
MDB High Pass Corner Frequency
bit[15:8]220 Hz
330Hz
...
30300 Hz
bit[7:0]00
must be zero
hex
The MDB highpass cor ner freq uency d efines th e lower cor ner fr equency of the
MDB bandpass filter. The highpass filter avoids loading the lou dspeakers with
low frequency components that a re below the s peakers’ cut off fre quenc y. Recommended values for subwoofer systems are around 5 (=50 Hz), for regular TV
sets around 10 (=100 Hz).
0+0 dB
1+0.125 dB increase in addition to the volume table
...
7+0.875 dB increase in addition to the volume table
bit[4:0]01
hex
+12 dB (maximum volume)
+11 dB
+1dB
0dB
−1dB
−113 dB
−114 dB
Mute (reset condition)
this must be 01
hex
VOL_SCART1
VOL_SCART2
38Micronas
Page 39
PRELIMINARY DATA SHEETMSP 34x0G
2
Table 3–11: Write Registers on I
C Subaddress 12
, continued
hex
Register
FunctionName
Address
SCART SWITCHES AND DIGITAL I/O PINS
00 13
hex
ACB Register
Defines the level of the digital output pins and the position of the SCART
switches
bit[15]0/1low/high of digital output pin D_CTR_I/O_1
(MODUS[3]=0)
bit[14]0/1low/high of digital output pin D_CTR_I/O_0
(MODUS[3]=0)
bit[13:5]SCART DSP Input Select
xxxx00xx0SCART1 to DSP input (RESET position)
xxxx01xx0MONO to DSP input (Sound A Mono must be selected in
the channel matrix mode for the corresponding output
channels)
xxxx10xx0SCART2 to DSP input
xxxx11xx0SCART3 to DSP input
xxxx00xx1SCART4 to DSP input
xxxx11xx1mute DSP input
bit[13:5]SCART1 Output Select
xx00xxx0xSCART3 input to SCART1 output (RESET position)
xx01xxx0x S CART2 input to SCART1 output
xx10xxx0x MONO input to SCART1 output
xx11xxx0x SCART1 DA to SCART1 output
xx00xxx1x SCART2 DA to SCART1 output
xx01xxx1x S CART1 input to SCART1 output
xx10xxx1x S CART4 input to SCART1 output
xx11xxx1x mute SCART1 output
ACB_REG
BEEPER
00 14
hex
bit[13:5]SCART2 Output Select
00xxxx0xxSCART1 DA to SCART2 output (RESET position)
01xxxx0xxSCART1 input to SCART2 output
10xxxx0xxMONO input to SCART2 output
00xxxx1xxSCART2 DA to SCART2 output
01xxxx1xxSCART2 input to SCART2 output
10xxxx1xxSCART3 input to SCART2 output
11xxxx1xxSCART4 input to SCART2 output
11xxxx0xxmute SCART2 output
The RESET position become s active at the time of the first write t ransmission
on the control bus to the audio process ing part. By wr iting to the ACB register
first, the RESET state can be redefined.
Beeper Volume and Frequency
bit[15:8]Beeper Volume
00
7F
hex
hex
off
maximum volume
bit[7:0]Beeper Frequency
01
40
FF
hex
hex
hex
16 Hz (lowest)
1kHz
4kHz
BEEPER
Micronas39
Page 40
MSP 34x0GPRELIMINARY DATA SHEET
3.3.2.7. Read Registers on I2C Subaddress 13
hex
Table 3–12: Read Registers on I2C Subaddress 13
Register
FunctionName
Address
QUASI-PEAK DETECTOR READOUT
00 19
00 1A
hex
hex
Quasi-Peak Detector Readout Left
Quasi-Peak Detector Readout Right
bit[15:0]0
... 7FFF
hex
values are 16 bit two’s complement (only positive)
hex
MSP 34x0G VERSION READOUT REGISTERS
00 1E
hex
MSP Hardware Version Code
bit[15:8]02
hex
MSP 34x0G - B8
A change in the hardware version cod e defines hardware optimizations that
may have influence on the chip’s behavior. The readout of this register i s identical to the hardware version code in the chip’s imprint.
By means of the MSP-Prod uct Code, the control processor is able to decide
which TV sound standards have to be considered.
MSP ROM Version Code
bit[7:0]45
46
48
hex
hex
hex
MSP 34x0G - B5
MSP 34x0G - B6
MSP 34x0G - B8
A change in the ROM version code defines internal software optimizations,
that may have influence on the chip’s behavior, e.g. new features may have
been included. W hile a software change i s intende d to create no compati bility
problems, customers that want to use the new functions can identify new
MSP 34x0G versions according to this number.
To avoid compatibility pr oblems with M SP 3410B and MSP 34x0 D, an offset of
is added to the ROM version code of the chip’s imprint.
40
hex
MSP_PRODUCT
MSP_ROM
40Micronas
Page 41
PRELIMINARY DATA SHEETMSP 34x0G
3.4. Programming Tips
This section descr ibes the pre ferred method for initializing the MSP 34x0G. The initialization is group ed into
four sections:
– SCART Signal Path (analog signal path)
– Demodulator
– SCART and I
2
S Inputs
– Output Channels
See Fig. 2–1 on page 8 for a complete signal flow.
SCART Signal Path
1. Select analog input for the SCART baseband processing (SCART DSP Input Select) by means of the
ACB r egist er.
2. Select the source for each analog SCART output
(SCART Output Select) by means of the ACB register.
Demodulator
For a complete setup of the TV sound processing from
analog IF input to the source selection, the following
steps must be performed:
1. Set MODUS register to the preferred mode and
Sound IF input.
3.5. Examples of Minimum Initialization Codes
Initialization of the MS P 34x0G acco rding to thes e list ings reproduces sound of the selected standard on the
loudspeaker output. All numbers are hexadecimal. The
examples have the following structure:
2
1. Perform an I
C controlled reset of the IC.
2. Write MODUS register
(with Automatic Sound Select).
3. Set Source Selection for loudspeaker channel
(with matrix set to STEREO).
4. Set Prescale
(FM and/or NICAM and dummy FM matrix).
5. Write STANDARD SELECT register.
6. Set Volume loudspeaker channel to 0 dB.
3.5.1. B/G-FM (A2 or NICAM)
<80008000> // Softreset
<80000000>
<801000302003> // MODUS-Register: Automatic = on
<801200080320> // Source Sel. = (St or A) & Ch. Matr. = St
5A
hex
hex
,
<8012000E2403> // FM/AM-Prescale = 24
FM-Matrix = MONO/SOUNDA
<801200105A00> // NICAM-Prescale =
<801000200003> // Standard Select: A2 B/G or NICAM B/G
or
<801000200008>
<801200007300> // Loudspeaker Volume 0 dB
2. Choose prefer re d p re sca le ( FM an d NI CA M ) values.
3. Write STANDARD SELECT register.
4. If Automatic Sound Select is not active:
Choose FM matrix repeatedly according to the
sound mode indicated in the STATUS register.
2
SCART and I
S Inputs
1. Select preferred prescale for SCART.
2. Select preferred prescale for I
2
S inputs
(set to 0 dB after RESET).
Output Channels
1. Select the source channel and matrix for each output channel.
2. Set audio baseband processing.
3. Select volume for each output channel.
3.5.2. BTSC-Stereo
<80008000> // Softreset
<80000000>
<801000302003> // MODUS-Register: Automatic = on
<801200080320> // Source Sel. = (St or A) & Ch. Matr. = St
<8012000E2403> // FM/AM-Prescale = 24
FM-Matrix = Sound A Mono
<801000200020> // Standard Select: BTSC-STEREO
<801200007300> // Loudspeaker Volume 0 dB
hex
,
3.5.3. BTSC-SAP with SAP at Loudspeaker Channel
<80008000> // Softreset
<80000000>
<801000302003> // MODUS-Register: Automatic = on
<801200080420> // Source Sel. = (St or B) & Ch. Matr. = St
<8012000E2403> // FM/AM-Prescale = 24
FM-Matrix = Sound A Mono
<801000200021> // Standard Select: BTSC-SAP
<801200007300> // Loudspeaker Volume 0 dB
hex
,
Micronas41
Page 42
MSP 34x0GPRELIMINARY DATA SHEET
3.5.4. FM-Stereo Radio
<80008000> // Softreset
<80000000>
<801000302003> // M O DUS- Regist er: Automatic = on
<801200080320> // Source Sel. = (St or A) & Ch. Matr. = St
5A
hex
hex
,
,
hex
<8012000E2403> // FM/AM-Prescale = 24
FM-Matrix = Sound A Mono
<801000200040> // Standard Select: FM-STEREO-RADIO
<801200007300> // Loudspeaker Volume 0 dB
3.5.5. Automatic Standard Detection
A detailed software flow diagram is shown in Fig. 3–2
on page 43.
<80008000> // Softreset
<80000000>
<801000302003> // M O DUS- R egister: Automatic = on
<801200080320> // Source Sel. = (St or A) & Ch. Matr. = St
<8012000E2403> // FM/AM-Prescale = 24
FM-Matrix = Sound A Mono
<801200105A00> // NICAM-Prescale =
<801000200001> // Standard Select:
Automatic Standard Detection
// Wait till STANDARD RESULT contains a value ≤ 07FF
// IF STANDARD RESULT contains 0000
// do some error handling
// ELSE
<801200007300> // Loudspeaker Volume 0 dB
3.5.6. Software Flow for Interrupt driven STATUS
Check
A detailed software flow diagram is shown in Fig. 3–2
on page 43.
If the D_CTR_I/O_1 pin of the MSP 34x0G is connected to an interrupt input pin of the controller, the following interrupt handler can be applied to be automatically called with each status change of the
MSP 34x0G. The interru pt handler may adjust the TV
display according to the new status information.
Interrupt Handler:
<80 11 02 00 <81 dd dd> // Read STATUS
// adjust TV display with given status information
// Return from Interrupt
42Micronas
Page 43
PRELIMINARY DATA SHEETMSP 34x0G
Write MODUS Register
Example
[0] = 1 Automatic Sound Select = on
[1] = 1 Enable interrupt if STATUS changes
[8] = 0 ANA_IN1+ is selected
Define Preference for Automatic Standard
Detection:
[12] = 0 If 6.5 MHz, set SECAM-L
[14:13] = 3 Ignore 4.5 MHz carrier
for the essential bits:
:
Write SOURCE SELECT Settings
Example:
set loudspeaker Source Select to "Stereo or A"
set headphone Source Select to "Stereo or B"
set SCART_Out Source Select to "Stereo or A/B"
set Channel Matrix mode for all outputs to "Stereo"
Write FM/AM-Prescale
Write NICAM-Prescale
set previous standard or
set standard manually according
picture informat ion
In case of MSPG-
Interrupt to Controller:
Write 01 into
STANDARD SELECT Register
(Start Automatic Standard Detection)
yes
Result = 0
?
no
expecting MSPG-interrupt
Read STATUS
Adjust TV-Display
If Bilingual, adjust Source Select setting if required
Fig. 3–2: Software flow diagram for a Minimum demodulator setup for a European Multistandard TV set applying the
Automatic Sound Select feature
Micronas43
Page 44
MSP 34x0GPRELIMINARY DATA SHEET
132
3364
57.7
±0.1
0.8
±0.2
3.8
±0.1
3.2
±0.2
1.778
1
±0.05
31 x 1.778 = 55.1
±0.1
0.48
±0.06
20.3
±0.5
0.28
±0.06
18
±0.05
19.3
±0.1
SPGS703000-1(P64)/1E
4. Specifications
4.1. Outline Dimensions
0.2±
°
x 45
0.12±
25.14
1
10
2
9
26
0.12±
25.14
619
9
4327
1.1
60
44
±0.05
1.9
±0.1
4.05
±0.15
4.75
0.05±
0.71
0.04±
0.23
0.06±
0.48
0.9
0.3±
23.3
0.1
0.1±
24.2
Fig. 4–1:68-Pin Plastic Leaded Chip Carrier Package (not intended for new designs)
(PLCC68)
Weight approximately 4.8 g
Dimensions in mm
16 x 1.27 = 20.32
1.27
2
24.2
0.1±
1.2 x 45°
1.27
7.5
7.5
0.1±
SPGS704000-1(P68)/1E
0.1±
16 x 1.27 = 20.32
Fig. 4–2:
64-Pin Plastic Shrink Dual-Inline Package
(PSDIP64)
Weight approximately 9.0 g
Dimensions in mm
2752
126
47.0
1
1.778
25 x 1.778 = 44.4
±0.1
±0.05
±0.1
0.48
±0.06
±0.1
±0.2
4.0
0.6
±0.2
2.8
SPGS703000-1(P52)/1E
15.6
14
±0.06
0.28
16.3
Fig. 4–3:
52-Pin Plastic Shrink Dual-Inline Package
(PSDIP52)
Weight approximately 5.5 g
Dimensions in mm
±0.1
±0.1
±1
44Micronas
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PRELIMINARY DATA SHEETMSP 34x0G
65
0.15±
17.2
80
0.15±
23.2
Fig. 4–4:
80-Pin Plastic Quad Flat Pack
(PQFP80)
Weight approximately 1.61 g
Dimensions in mm
3348
49
0.2±
12
64
1.75
116
1.75
0.2±
12
32
17
4164
241
0.145
1.5
0.04±
0.17
40
0.04±
0.37
25
0.05±
1.3
±0.2
3
0.055±
0.1±
0.05±
0.22
0.05±
1.4
0.1
0.1±
10
0.1±
2.7
0.1
15 x 0.5 = 7.5
0.5
10
0.1±
14
0.1±
0.5
0.1±
23 x 0.8 = 18.4
0.8
0.1±
15 x 0.5 = 7.5
0.1±
0.1±
0.8
15 x 0.8 = 12.0
0.1±
20
SPGS705000-3(P80)/1E
Fig. 4–5:
64-Pin Plastic Low-Profile Quad Flat Pack
(PLQFP64)
Weight approximately 0.35 g
Dimensions in mm
D0025/3E
Micronas45
Page 46
MSP 34x0GPRELIMINARY DATA SHEET
4.2. Pin Connections and Short Descriptions
NC = not connected; leave vacant
LV = if not used, leave vacant
X = obligatory; connect as described in circuit diagram
DVSS: if not used, connect to DVSS
AHVSS: connect to AHVSS
PLCC
68-pin
PSDIP
64-pin
Pin No.Pin NameTypeConnection
PSDIP
52-pin
PQFP
80-pin
PLQFP
64-pin
(if not used)
Short Description
1161498ADR_WSOUTLVADR word strobe
2−−−−NCLVNot connected
3151387ADR_DAOUTLVADR data output
4141276I2S_DA_IN1IN LV I
5131165I2S_DA_OUTOUTLV I
6121054I2S_WSIN/OUTLV I
711943I2S_CLIN/OUTLV I
810832I2C_DAIN/OUTXI
99721I2C_CLIN/OUTXI
2
S1 data input
2
S data output
2
S word strobe
2
S clock
2
C data
2
C clock
108−164NCLVNot connected
11768063STANDBYQINXStand-by (low-active)
126 5 7962ADR_SELINXI
2
C Bus address select
13547861D_CTR_I/O_0IN/OUTLVD_CTR_I/O_0
14437760D_CTR_I/O_1IN/OUTLVD_CTR_I/O_1
153−7659NCLVNot connected
162−7558NCLVNot connected
17−−−−NCLVNot connected
18127457AUD_CL_OUTOUTLVAudio clock output
−−−59−NCLVNot connected
2954435846VREFTOPXReference voltage IF
A/D converter
3053425745SC1_IN_RINLVSCART 1 input, right
3152415644SC1_IN_LINLVSCART 1 input, left
3251−5543ASGAHVSSAnalog Shield Ground
3350405442SC2_IN_RINLVSCART 2 input, right
3449395341SC2_IN_LINLVSCART 2 input, left
3548−5240ASGAHVSSAnalog Shield Ground
3647385139SC3_IN_RINLVSCART 3 input, right
3746375038SC3_IN_LINLVSCART 3 input, left
3845−4937ASGAHVSSAnalog Shield Ground
3944−4836SC4_IN_RINLVSCART 4 input, right
4043−4735SC4_IN_LINLVSCART 4 input, left
41−−46−NCLV or AHVSSNot connected
4242364534AGNDCXAnalog reference voltage
4341354433AHVSSXAnalog ground
−−−43−AHVSSXAnalog ground
−−−42−NCLVNot connected
−−−41−NCLVNot connected
4440344032CAPL_MXVolume capacitor MAIN
4539333931AHVSUPXAnalog power supply 8 V
4638323830CAPL_AXVolume capacitor AUX
4737313729SC1_OUT_LOUTLVSCART output 1, left
Micronas47
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MSP 34x0GPRELIMINARY DATA SHEET
PLCC
68-pin
PSDIP
64-pin
Pin No.Pin NameTypeConnection
PSDIP
52-pin
PQFP
80-pin
PLQFP
64-pin
(if not used)
Short Description
4836303628SC1_OUT_ROUTLVSCART output 1, right
4935293527VREF1XReference ground 1
5034283426SC2_OUT_LOUTLVSCART output 2, left
5133273325SC2_OUT_ROUTLVSCART output 2, right
52−−32−NCLVNot connected
5332−3124NCLVNot connected
5431263023DACM_SUBOUTLVSubwoofer output
5530−2922NCLVNot connected
5629252821DACM_LOUTLVLoudspeaker out, left
5728242720DACM_ROUTLVLoudspeaker out, right
5827232619VREF2XReference ground 2
5926222518DACA_LOUTLVHeadphone out, left
6025212417DACA_ROUTLVHeadphone out, right
(Fig. 4–21)
Output of the headphone signal. A 1-nF capacitor to
AHVSS must be conn ected to t hese pins. The D C offset on these pins de pen ds on t he sel ec ted head pho ne
volume.
Pin 26, VREF2 – Reference Ground 2
Reference analog ground. This pi n must be connected
separately to ground (AHVSS). VREF2 serves as a
clean ground and sh ould be used as the reference for
analog connections to the loudspeaker and headphone outputs.
S
Pins 27, 28, DACM_R/L – Loudspeaker Outputs
(Fig. 4–21)
Output of the loudspe aker signal. A 1-nF capacitor to
AHVSS must be conn ected to t hese pins. The D C offset on these pins depends on the selected loudspeaker volume.
Output of the subwoofer signal. A 1-nF capacitor to
AHVSS must be conn ected to this pin. Due to t he low
frequency content of the s ubwoofer output, the value
of the capacitor may be increa sed for better suppression of high-frequency noi se. The DC offs et on thi s pin
depends on the selected loudspeaker volume.
(Fig. 4–22)
Output of the SCART2 signal. Connections to these
pins must use a 100-Ω series resistor and are intended
to be AC-coupled.
Pin 35, VREF1 – Reference Ground 1
Reference analog ground. This pi n must be connected
separately to ground (AHVSS). VREF1 serves as a
clean ground and sh ould be used as the reference for
analog connections to the SCART outputs.
Pins 14, 15, 16, DVSS* – Digita l Gr oun d
Ground connection for the digital circuitry of the MSP.
2
Pin 17, I2S_DA_IN2 – I
Second input of digital s erial sound data to the MSP
via the I
2
S bus.
S Data Input 2 (Fig. 4–15)
Pins 36, 37, SC1_OUT_R/L – SCART1 Outputs
(Fig. 4–22)
Output of the SCART1 signal. Connections to these
pins must use a 100-Ω series resistor and are intended
to be AC-coupled.
In the steady state, high level is required. A low level
resets the MSP 34x0G.
Micronas49
Page 50
MSP 34x0GPRELIMINARY DATA SHEET
Pin 38, CAPL_A – Volume Capacitor Headphone
(Fig. 4–24)
A 10-µF capacitor to AHVSUP must be connected to
this pin. It ser ves as a smoothin g filter for headphone
volume changes in order to suppress audible plops.
The value of the capa citor can be lowered to 1-µF if
faster response is requir ed. The area en circled by the
trace lines should be minimized; keep traces as short
as possible. This input is sens itive for magnetic induction.
Pin 39, AHVSUP* – Analog Power Supply High Volt-
age
Power is supplied via this pin for the analog c ircu itry of
the MSP (except IF input). This pin must be connected
to the +8V supply.
Pin 40, CAPL_M – Volume Capacitor Loudspeaker
(Fig. 4–24)
A 10-µF capacitor to AHVSUP must be connected to
this pin. It serves as a smoothing fi lter for loudspeaker
volume changes in order to suppress audible plops.
The value of the capacitor can be lowered to 1 µF if
faster response is requir ed. The area en circled by the
trace lines should be minimized; keep traces as short
as possible. This input is sens itive for magnetic induction.
Pins 41, 42, NC – Pins not connected.
Pins 43, 44, AHVSS* – Ground for Analog Power
Supply High Voltage
Ground connection for the analog c ircuitr y o f the MSP
(except IF input).
Pin 45, AGNDC – Internal Analog Reference Voltage
This pin ser ves as the internal ground c onnection for
the analog circuitr y (except IF input). It must be connected to the VREF pins with a 3.3-µF and a 10 0-nF
capacitor in parallel. This pins shows a DC level of typically 3.73 V.
(Fig. 4–14)
The analog input signa l for SCART4 is fed to this pin.
Analog input connection must be AC-coupled.
Pin 49, ASG – Analog Shield Ground
Analog ground (AHVSS) should be connected to this
pin to reduce cross-coupling between SCART inputs.
Pins 50, 51, SC3_IN_L/R – SCART3 Inputs
(Fig. 4–14)
The analog input signa l for SCART3 is fed to this pin.
Analog input connection must be AC-coupled.
Pin 52, ASG – Analog Shield Ground
Analog ground (AHVSS) should be connected to this
pin to reduce cross-coupling between SCART inputs.
Pins 53, 54, SC2_IN_L/R – SCART2 Inputs
(Fig. 4–14)
The analog input sign al for SCART2 is fed to this pin.
Analog input connection must be AC-coupled.
Pin 55, ASG – Analog Shield Ground
Analog ground (AHVSS) should be connected to this
pin to reduce cross-coupling between SCART inputs.
Pins 56, 57, SC1_IN_L/R – SCART1 Inputs
(Fig. 4–14)
The analog input sign al for SCART1 is fed to this pin.
Analog input connection must be AC-coupled.
Pin 58, VREFTOP – Reference Voltage IF A/D Con-
verter (Fig. 4–16)
Via this pin, the reference voltage for the IF A/D converter is decoupled. It must be connected to AVSS
pins with a 10-µF and a 100-nF capacitor in parallel.
Traces must be kept short.
The analog mono inp ut s ignal i s fed to thi s p in. Analog
input connection must be AC-coupled.
Pins 61, 62, AVSS* – Ground for Analog Power
Supply Voltage
Ground connection for the analo g IF input circuitry of
the MSP.
Pins 63, 64, NC – Pins not connected.
Pins 65, 66, AVSUP* – Analog Power Supply Voltage
Power is supplied via this pin for the analog IF input circuitry of the MSP. This pin must b e connected to the
+5 V supply.
Pin 67, ANA_IN1+ – IF Input 1 (Fig. 4–16)
The analog sound IF signal is supplied to this pin.
Inputs must be AC-coupled. This pin is designed as
symmetrical input: ANA_IN1+ is internally connected
to one input of a symmetri cal op amp, ANA_IN- to the
other.
Pin 68, ANA_IN− – IF Common (Fig. 4–16)
This pins serves as a common reference for ANA_IN1/
2+ inputs.
Pin 69, ANA_IN2+ – IF Input 2 (Fig. 4–16)
The analog sound if signal is supplied to this pin.
Inputs must be AC-coupled. This pin is designed as
symmetrical input: ANA_IN2+ is internally connected
to one input of a symm etri cal o p amp, ANA_IN− to the
other.
Pin 70, TESTEN – Test Enable Pin (Fig. 4–12)
This pin enables factory test modes. For normal operation, it must be connected to ground.
50Micronas
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PRELIMINARY DATA SHEETMSP 34x0G
Pins 71, 72, XTAL_IN, XTAL_OUT – Crysta l Inpu t and
Output Pins (Fig. 4–20)
These pins are connected to an 18.432 MHz crystal
oscillator which is digitally tuned by integrated shunt
capacitances. An external clock can be fed into
XTAL_IN. The audio clock output signal AUD_CL_OUT
is derived from the oscillator. External capacitors at
each crystal pin to ground (AVSS) are required. It
should be verifie d by layout, that no sup ply curr ent for
the digital circuitr y is flowing through the ground c onnection p oint.
Pin 73, TP – This pin enables factor y test modes. For
normal operation, it must be left vacant.
Pin 74, AUD_CL_OUT – Audio Clock Output
(Fig. 4–20)
This is the 18.432 MHz main clock output.
Pins 75, 76, NC – Pins not connected.
Pins 77, 78, D_CTR_I/O_1/0 – Digital Control Input/
Output Pins (Fig. 4–19)
General purpos e input/output pins. Pin D_CT R_I/O_1
can be used as an in terrup t request pin to the c ontroller.
2
Pin 79, ADR_SEL – I
C Bus Address Sele ct
(Fig. 4–17)
By means of this pin, one of three device addresses for
the MSP can be selected. The pin can be connected to
ground (I
ply (84/85
2
C device addresses 80/81
), or left open (88/89
hex
hex
hex
).
), to +5 V sup-
Pin 80, STANDBYQ – Stand-by
In normal operation, this pin must be high. If the
MSP 34x0G is switched off by first pullin g STANDBYQ
low and then (after >1µs d elay) switching off DVSUP
and AVSUP, but keeping AHVSUP (‘Standby’-mode),
the SCART switches maintain their position and function.
* Application Note:
All ground pins shoul d be connecte d to one low-re sistive ground plane. All supply pins should be connected
separately with short and low-resistive lines to the
power supply. Decoupling capacitors from DVSUP to
DVSS, AVSUP to AVSS, and AHVSUP to AHVS S are
recommended as closely as possible to these pins.
Decoupling of DVSUP and DVSS is most important.
We recommend using more than one capacitor. By
choosing different values, the frequency range of
active decoupling can be extended. In our application
boards we use: 220 pF, 470 pF, 1. 5 nF, and 10 µF. The
capacitor with the lowest value should be place d nea rest to the DVSUP and DVSS pins.
The ASG pins should be conn ected as cl osely as possible to the MSP ground. If they are lead with the
SCART-inputs as shielding lines, they should not be
connected to ground at the SCART connector.
Ambient Operating Temperature−070°C
Storage Temperature−−40125°C
First Supply VoltageAHVSUP−0.39.0V
Second Supply VoltageDVSUP−0.36.0V
Third Supply VoltageAVSUP−0.36.0V
Voltage between AVSUP
and DVSUP
Power Dissipation
PLCC68
PSDIP64
PSDIP52
PQFP80
PLQFP64
Input Voltage, all Digital Inputs−0.3V
AVSUP ,
DVSUP
AHVSUP,
DVSUP ,
AVSUP
−0.50.5V
1200
1300
1200
1000
960
+0.3V
SUP2
mW
mW
mW
mW
mW
Input Current, all Digital Pins−−20+20mA
Input Voltage, all Analog InputsSCn_IN_s,
2)
−0.3V
SUP1
+0.3V
MONO_IN
Input Current, all Analog InputsSCn_IN_s,
2)
−5+5mA
MONO_IN
1)
1)
I
Oana
I
Oana
Output Current, all SCART OutputsSCn_OUT_s
Output Current, all Analog Outputs
DACp_s
2)3), 4)3), 4)
2)3)3)
except SCART Outputs
I
Cana
1)
positive value means current flowing into the circuit
2)
“n” means “1”, “2”, “3”, or “4”, “s” means “L” or “R”, “p” means “M” or “A”
3)
The analog outputs are short-circuit proof with respect to First Supply Voltage and ground.
4)
Total chip power dissipation must not exceed absolute maximum rating.
Output Current, other pins
connected to capacitors
CAPL_p,
AGNDC
2)
3)3)
Stresses beyond those listed in the “Absolute Maximum Ratings” may cause permanent damage to the device. This
is a stress rating onl y. Functional operation of the device at these or any oth er condi tions beyond those indic ated i n
the “Rec ommended Operating Conditions/Character istics” of this specificati on is not i mplied. Ex posure to abs olute
maximum ratings conditions for extended periods may affect device reliability.
58Micronas
Page 59
PRELIMINARY DATA SHEETMSP 34x0G
4.6.2. Recommended Operating Conditions (TA = 0 to 70 °C)
4.6.2.1. General Recommended Operating Conditions
SymbolParameterPin NameMin.Typ.Max.Unit
V
SUP1
First Supply Voltage
AHVSUP7.68.08.7V
(AHVSUP = 8 V)
First Supply Voltage
4.755.05.25V
(AHVSUP = 5 V)
V
SUP2
V
SUP3
t
STBYQ1
Second Supply VoltageDVSUP4.755.05.25V
Third Supply VoltageAVSUP4.755 .05.25V
STANDBYQ Setup Time before
Turn-off of Second Supply Voltage
STANDBYQ,
DVSUP
1µs
4.6.2.2. Analog Input and Output Recommendations
SymbolParameterPin NameMin.Typ.Max.Unit
C
AGNDC
AGNDC-Filter-CapacitorAGNDC−20%3.3µF
Ceramic Capacitor in Parallel−20%100nF
Luma Components
Passband Ripple−−±2dB
Suppression of Spectrum
15−dB
above 9.0 MHz (not for FM Radio)
Maximum FM-Deviation (approx.)
normal mode
HDEV2: high deviation mode
HDEV3: very high deviation mode
±180
±360
±540
kHz
kHz
kHz
60Micronas
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PRELIMINARY DATA SHEETMSP 34x0G
4.6.2.4. Crystal Recommendations
SymbolParameterPin NameMin.Typ.Max.Unit
General Crystal Recommendations
f
P
Crystal Parallel Resonance Frequency at 12 pF Load Capacitance
R
R
C
0
C
L
Crystal Series Resistance825Ω
Crystal Shunt (Parallel) Capacitance6.27.0pF
External Load Capacitance
1)
XTAL_IN,
XTAL_OUT
Crystal Recommendations for Master-Slave Applications
f
TOL
D
TEM
Accuracy of Adjustment−20+20ppm
Frequency Variation
versus Temperature
C
1
f
CL
Crystal Recommendations for FM / NICAM Applications
f
TOL
D
TEM
Motional (Dynamic) Capacitanc e1924fF
Required Open Loop Clock
Frequency (T
= 25 °C)
amb
AUD_CL_OUT
(No MSP-clock synchronization to I2S clock possible)
Accuracy of Adjustment−30+30ppm
Frequency Variation
versus Temperature
18.432MHz
PSDIPapprox. 1.5
P(L)QFP approx. 3.3
(MSP-clock must perform synchronization to I2S clock)
pF
pF
−20+20ppm
18.43118.433MHz
−30+30ppm
C
1
f
CL
Crystal Recommendations for all analog FM/AM Applications
f
TOL
D
TEM
Motional (Dynamic) Capacitanc e15fF
Required Open Loop Clock
Frequency (T
= 25 °C)
amb
AUD_CL_OUT
(No MSP-clock synchronization to I2S clock possible)
18.430518.4335
MHz
Accuracy of Adjustment−100+100ppm
Frequency Variation
−50+50ppm
versus Temperature
f
CL
Amplitude Recommendation for Operation with External Clock Input (C
V
XCA
1)
External capacitors at each crystal pin to groun d are required. They are ne cessary to tune the open-loo p fre-
Required Open Loop Clock
Frequency (T
= 25 °C)
amb
AUD_CL_OUT18.42918.435MHz
after reset typ. 22 pF)
load
External Clock AmplitudeXTAL_IN0.7V
pp
quency of the internal PLL and to stabilize the frequency in closed-loop operation.
Due to different layou ts, the acc urate capacitor size should be determined with th e customer PCB
. The sug-
gested values (1.5...3.3 pF) are figures based on experience and should serve as “start value”.
To define the capacitor s ize, reset the MSP without trans mitting any further I2C telegrams. Measure th e fre-
quency at AUD_CL_OUT-pin. Change the capacitor size until the free running frequency matches 18.432 MHz
as closely as possible. The higher the capacity, the lower the resulting clock frequency.
Micronas61
Page 62
MSP 34x0GPRELIMINARY DATA SHEET
4.6.3. Characteristics
= 0 to 70 °C, f
at T
A
= 60 °C, f
at T
A
T
= Junction Temperature
J
CLOCK
= 18.432 MHz, V
CLOCK
= 18.432 MHz, V
SUP1
= 7.6 to 8.7 V, V
SUP1
= 8 V, V
SUP2
= 4.75 to 5.25 V for min./max. values
SUP2
= 5 V for typical values,
MAIN (M) = Loudspeaker Channel, AUX (A) = Headphone Channel
4.6.3.1. General Characteristics
SymbolParameterPi n Na m eMin.Typ.Max.UnitTest Condit ions
Supply
I
SUP1A
I
SUP2A
I
SUP3A
I
SUP1S
Clock
First Supply Current (active)
(AHVSUP = 8 V)
First Supply Current (active)
(AHVSUP = 5 V)
Second Supply Current (active)DVSUP5570mA
Third Supply Current (active)AVSUP3038mA
First Supply Current
(AHVSUP = 8 V)
First Supply Current
(AHVSUP = 5 V)
AHVSUP17
11
11
8
AHVSUP5.67.7mASTANDBYQ = low
3.75.1mA
25
16
17
11
mA
mA
mA
mA
Vol. Main and Aux = 0 dB
Vol. Main and Aux = -30dB
Vol. Main and Aux = 0 dB
Vol. Main and Aux = -30 dB
f
CLOCK
D
CLOCK
t
JITTER
V
xtalDC
t
Startup
V
ACLKAC
V
ACLKDC
r
outHF_ACL
Clock Input FrequencyXTAL_IN18.432MHz
Clock High to Low Ratio4555%
Clock Ji t ter (Verification not
provided in Production Test)
DC-Voltage Oscillator2.5V
Oscillator Startup Time at
VDD Slew-rate of 1 V/1 µs
Audio Clock Output AC VoltageAUD_CL_OUT1.21.8V
Audio Clock Output DC Voltage0.40.6V
HF Output Resistance140Ω
BTSC Characteristics (MSP Standard Code = 20
with a minimum IF input signal level of 70 mVpp (measured without any video/chroma signal components)
S/N
BTSC
S/N of BTSC Stereo Signal
S/N of BTSC-SAP Signal
THD
BTSC
THD+N of BTSC Stereo Signal
THD+N of BTSC SAP Signal
fR
DBX
Frequency Response of BTSC
Stereo, 50 Hz...12 kHz
Frequency Response of BTSC-
, 21
hex
hex
DACp_s,
SCn_OUT_s
)
64
1
55
0.15
0.8
−1.0
−1.0
1.0
1.0
dB
dB
%
%
dB
dB
SAP, 50 Hz...9 kHz
fR
MNR
Frequency Response of BTSC
Stereo, 50 Hz...12 kHz
Frequency Response of BTSC-
−2.02.0dBL or R 5%...66% EIM2), MNR
−2.02.0dBSAP, white noise, 10% Modu-
SAP, 50 Hz...9 kHz
XTALK
SEP
DBX
BTSC
Stereo → SAP
SAP → Stereo
Stereo Separation DBX NR
50 Hz...10 kHz
50 Hz...12 kHz
75
75
35
30
dB
dB
dB
dB
1 kHz L or R or SAP, 100%
modulation, 75
µs deempha-
sis, RMS unweighted 0 to 15
kHz
1 kHz L or R or SAP, 100%
75 µs EIM
2)
, DBX NR or
MNR, RMS unweighted
0 to 15 kHz
L or R or SAP,
1%...66% EIM
2)
, DBX NR
lation, MNR
1 kHz L or R or SAP, 100%
modulation, 75 µs deemphasis, Bandpass 1 kHz
L or R 1%...66% EIM
2)
, DBX
NR
SEP
MNR
1)
“n” means “1” or “2”; “s” means “L” or “R”; “p” means “M” or “A”
2)
EIM refers to 75-µs Equivalent Input Modulation. It is defined as the audio-signal level which results in a stated percentage modulation,
Stereo Separation MNR30dBL = 300 Hz, R = 3.1 kHz
14% Modulation, MNR
when the DBX encoding process is replaced by a 75-µs preemphasis network.
Micronas75
Page 76
MSP 34x0GPRELIMINARY DATA SHEET
SymbolParameterPi n Na m eMin.Typ.Max.UnitTest Conditions
EIA-J Characteristics (MSP Standard Code = 30
S/N
EIAJ
S/N of EIA-J Stereo Signal
hex
S/N of EIA-J Sub-Channel
THD
EIAJ
THD+N of EIA-J Stereo Signal
THD+N of EIA-J Sub-Channel
fR
EIAJ
Frequency Response of EIA-J
Stereo, 50 Hz...12 kHz
Frequency Response of EIA-J
Sub-Channel, 50 Hz...12 kHz
XTALK
EIAJ
Main → SUB
Sub → MAIN
SEP
EIAJ
Stereo Separation
50 Hz...5 kHz
50 Hz...10 kHz
FM-Radio Characteristics (MSP Standard Code = 40
S/N
THD
fR
UKW
UKW
UKW
S/N of FM-Radio Stereo SignalDACp_s,
THD+N of FM-Radio Stereo Signal0.1%
Frequency Response of
FM-Radio Stereo
50 Hz...15 kHz−1.0+0.5dB
)
DACp_s,
SCn_OUT_s
)
hex
SCn_OUT_s
60
1)
60
0.2
0.3
−0.5
1.0
dB
dB
%
%
dB
1 kHz L or R,
100% modulation,
75 µs deemphasis,
RMS unweighted
0 to 15 kHz
100% modulation,
75 µs deemphasis
−1.0
66
80
1.0
dB
dB
dB
1 kHz L or R, 100%
modulation, 75 µs
deemphasis,
Bandpass 1 kHz
EIA-J Stereo Signal, L or R
35
28
68dB1 kHz L or R, 100% modula-
1)
dB
dB
100% modulation
tion, 75 µs deemphasis, RMS
unweighted
0 to 15 kHz
L or R, 1%...100% modula-
tion, 75 µs deemphasis
SEP
UKW
f
Pilot
1)
“n” means “1” or “2”; “s” means “L” or “R”; “p” means “M” or “A”
Stereo Separation 50 Hz...15 kHz45dB
Pilot Frequency RangeANA_IN1+
ANA_IN2+
18.84419.125 kHzstandard FM radio
stereo signal
76Micronas
Page 77
PRELIMINARY DATA SHEETMSP 34x0G
5. Appendix A: Overview of TV-Sound Standards
5.1. NICAM 728
Table 5–1: Summary of NICAM 728 sound modulation parameters
SpecificationIB/GLD/K
Carrier frequency of
digital sound
Transmission rate728 kbit/s
Type of modulationDifferentially encoded quadrature phase shift keying (DQPSK)
Spectrum shaping
Roll-off factor
Carrier frequency of
analog sound component
Power ratio between
vision carrier and
analog sound carrier
Power ratio between
analog and modulated
digital sound carrier
6.552 MHz5.85 MHz5.85 MHz5.85 MHz
by means of Roll-off filters
1.00.40.40.4
6.0 MHz
FM mono
10 dB13 dB10 dB16 dB13 dB
10 dB7 dB17 dB11 dBChina/
5.5 MHz
FM mono
6.5 MHz AM mono6.5 MHz
FM mono
terrestrialcable
Hungary
12 dB7 dB
Poland
Table 5–2: Summary of NICAM 728 sound coding characteristics
CharacteristicsValues
Audio sampling frequency 32 kHz
Number of channels2
Initial resolution 14 bit/sample
Companding characteristics near instantaneous, with compression to 10 bits/sample in 32-samples (1 ms) blocks
Coding for compressed samples2’s complement
PreemphasisCCITT Recommendation J.17 (6.5 dB attenuation at 800 Hz)
Audio overload level +12 dBm measured at the unity gain frequency of the preemphasis network (2 kHz)
Micronas77
Page 78
MSP 34x0GPRELIMINARY DATA SHEET
5.2. A2-Systems
Table 5–3: Key parameters for A2 Systems of Standards B/G, D/K, and M
CharacteristicsSound Carrier FM1Sound Carrier FM2
TV-Sound Standard
Carrier frequency in MHz5.56.54.55.74218756.2578125
Vision/sound power difference13 dB20 dB
Sound bandwidth40 Hz to 15 kHz
Preemphasis50 µs75 µs50 µs75 µs
Frequency deviation (nom/max)±27/±50 kHz±17/±25 kHz±27/±50 kHz±15/±25 kHz
Transmission Modes
Mono transmissionmonomono
Stereo transmissio n(L+R)/2(L+R)/2R(L−R)/2
Dual sound transmissionlanguage Alanguage B
Identification of Transmission Mode
Pilot carrier frequency54.6875 kHz55.0699 kHz
Max. deviation portion
Type of modulation / modulation depthAM / 50%
Table 5–7: Key parameters for FM-Stereo Radio Systems
Aural
Carrier
Carrier frequency (f
Sound bandwidth inkHz0.05 - 150.05 - 15
= 19 kHz)10.7 MHzBasebandf
p
(L+R)Pilot(L−R)RDS/ARI
FM-Radio-MPX-Components
p
2 f
p
3 f
h
Preemphasis:
− USA
− Europe
Max. deviation to Aural Carr ier75 kHz
(100%)
75 µs
50 µs
90%10%90%5%
75 µs
50 µs
80Micronas
Page 81
PRELIMINARY DATA SHEETMSP 34x0G
6. Appendix B: Manual/Compatibility Mode
To adapt the modes of the STANDARD SELECT register to individual re quirements and for reasons o f com-patibility to the MSP 34x0D, the MSP 34x0G offers
an Manual/Compatibility Mode, which pr ovides so phi sticated programming of the MSP 34x0G.
Using the STANDARD SELECT regi ster gene rally provides a more economic way to program the
MSP 34x0G and will resul t in op timal behavior. There-
fore, it is not recommend to use the Manual/Compatibility mode. In those cases, where the
MSP 34x0D is to be substituted by the MSP 34x0G,
the tips given in Sect ion 6 .10. on page 97 have to be
obeyed by the controller software.
6.1. Demodulator Write and Read Registers for Manual/Compatibility Mode
1. MODUS[0]=1 (Automatic Sound Select): Switching Level threshold of
Automatic Switching between NICAM and FM/AM in case of bad NICAM
reception
2. MODUS[0]=0 (Manual Mod e): Activation and configuration of Automatic
Switching between NICAM and FM/AM in case of bad NICAM reception
Controlling of MSP-Demodulator and Interface options. As soon as this
register is applied, the MSP 34x0G wor ks in the MSP 34x0D co mpatibility
mode.
Warning: In this mode, BTSC, EIA-J, and FM-Radio are disabled. Only
MSP 34x0D features are available; the use of MODUS and STATUS regis ter
is not allowed.
The MSP 34x0G is reset to the normal mode by first programming the
MODUS register followed by transmitting a valid standard code to the
STANDARD SELECTION register.
; these registers are not readable!
hex
Mode
00 0083
hex
hex
00 0087
Page
85
85
FIR1
FIR2
DCO1_LO
DCO1_HI
DCO2_LO
DCO2_HI
PLL_CAPS00 1FNot of interest for the customer
Note: All registers except AUTO_FM/AM, A2_Threshold, and CM_Threshold are initialized during STANDARD SELECTION and are
automatically updated when Automatic Sound Select (MODUS[0]=1) is on.
C_AD_BITS00 233410,
ADD_BITS00 38NICAM: bit [10:3] of additional data bits91
CIB_BITS00 3ENICAM: CIB1 and CIB2 control bits91
ERROR_RATE00 57NICAM error rate, updated with 182ms92
PLL_CAPS02 1FNot for customer use92
AGC_GAIN02 1ENot for customer use92
Address
(hex)
MSPVersion
3450
DescriptionPage
NICAM-Sync bit, NICAM-C-Bits, and three LSBs of additional data bits91
; these registers are not writable!
hex
6.2. DSP Write and Read Registers for Manual/Compatibility Mode
DC level readout FM1/Ch2-L00 1B[15:0][8000
DC level readout FM2/Ch1-R00 1C[15:0][8000
(hex)
00 18[15:8][80
BitsOutput RangePage
, all registers are not wr itable
hex
... 7F
hex
] 8 bit two’s co mp lemen t94
hex
... 7FFF
hex
... 7FFF
hex
]16 bit two’s complement94
hex
]16 bit two’s complement94
hex
hex
hex
93
93
82Micronas
Page 83
PRELIMINARY DATA SHEETMSP 34x0G
6.3. Manual/Compatibility Mode:
Description of Demodulator Write Registers
6.3.1. Automatic Switching between NICAM and
Analog Sound
In case of bad NICAM reception or loss of the
NICAM-carrier, the MSP 34x0G offers an Automatic
Switching (fall back) to the analog sound (FM/AMmono), without the necessity for the controller of reading
and evaluating any parameters. If a proper NICAM signal retur ns, switching back to th is source is performed
automatically as well. The feature evaluates the NICAM
ERROR_RATE and switches, if necessary, all output
channels which are assigned to the NICAM-source, to
the analog source, and vice versa.
An appropriate hysteresis algorithm avoids oscillating
effects (see Fig. 6–1). STATUS[9] and C_AD_BI TS[11]
(Address: 0023
) provide informa ti on abo ut the actual
hex
NICAM-FM/AM-status.
Selected Sound
NICAM
analog
sound
thresholdthreshold/2
ERROR_RATE
6.3.1.1. Function in Automatic Sound Select Mode
The Automatic Sound Select feature (MODUS[0]=1)
includes the procedure mentioned above. By default, the
internal ERROR_RATE threshold is set to 700
dec
. i.e.:
– NICAM → analog Sound if ERROR_RATE > 700
– analog Sound → NICAM if ERROR_RATE < 700/2
The ERROR_RATE value of 700 corresponds to a
BER of approximately 5.46*10
-3
/s.
Individual configuration of the threshold can be done
using Table 6–5. However, the inter nal setting used by
the standard selection is recommended.
The optimum NICAM sound can be assigned to the
MSP output chan nels by selecting one of the “Stereo
or A/B”, “Stereo or A”, or “Stereo or B” source channels
6.3.1.2. Function in Manual Mode
If the manual mode (MODUS[0]=0) is required, the
activation and configuration of the Automatic Switching
feature has to be done as described in Table 6–6. Note
that the channel matrix of the corresponding output-channels must be set according to the
NICAM-mode and need no t to be changed in the FM/
AM-fallback case.
Table 6–5: Coding of Automatic NICAM/Analog Sound Switching;
Automatic Sound Select is on (MODUS[0] = 1)
ModeDescriptionAUTO_FM [11:0]
1
Default
2Autom atic Switching with
3Forced Analog Monobit[11] = 1
1)
The NICAM path may be assigned to “Stereo or A/B”, “Stereo or A”, or “Stereo or B” source channels
(see Table 2–2 on page 11).
Automatic Switching with
internal threshold
external threshold
(Customizing of Automatic
Sound Select)
Addr. = 00 21
bit[11:0] = 0700NICAM or FM/AM,
bit[11]= 0
bit[10:1] = 25...1000
bit[0]= 1
bit[10:1] = ignored
bit[0]= 1
hex
= threshold/2
ERROR_RATEThreshold/dec
set by customer;
recommended
range: 50...2000
Source Select:
Input at NICAM Path
depending on
ERROR_RATE
always FM/AM
1)
Micronas83
Page 84
MSP 34x0GPRELIMINARY DATA SHEET
Table 6–6: Coding of Automati c NICA M/Anal og Sou nd Swi tc hin g;
Automatic Sound Select is off (MODUS[0] = 0)
ModeDescriptionAUTO_FM [11:0]
0
reset
status
1Automatic Switching with
2Automatic Switching with
3Forced Analog Mono
Forced NICAM
(Automatic Switching disabled)
internal threshold
(Default, if Automatic Sound
Select is on)
external threshold
(Customizing of Automatic
Sound Select)
(Automatic Switching disabled)
Addr. = 00 21
bit[11]= 0
bit[10:1] = 0
bit[0]= 0
bit[11]= 0
bit[10:1] = 0
bit[0]= 1
bit[11]= 0
bit[10:1] = 25...1000
bit[0]= 1
bit[11]= 1
bit[10:1] = 0
bit[0]= 1
hex
= threshold/2
ERROR_RATEThreshold/dec
nonealways NICAM; Mute in
700NICAM or FM/AM,
set by customer;
recommended
range: 50...2000
nonealways FM/AM
Source Select:
Input at NICAM Path
case of no NICAM available
depending on
ERROR_RATE
84Micronas
Page 85
PRELIMINARY DATA SHEETMSP 34x0G
6.3.2. A2 Threshold
The threshold between Stereo/Bilingual and Mono
Identification for the A2 Standard ha s been made programmable according to the user’s preferences. An
internal hysteresis ensures robustness and stability
Table 6–7: Write Register on I
Register
FunctionName
C Subaddress 10
: A2 Threshold
hex
2
Address
THRESHOLDS
00 22
(write)A2 THRESHOLD Register
hex
Defines threshold of all A2 and EIA_J standards for Stereo and Bilingual
detection
bit[15:0]07F0
force Mono Identification
hex
...
0190
default setting after reset
hex
...
00A0
recommended range : 00A0
minimum Threshold for stable detection
hex
hex
...03C0
.
A2_THRESH
hex
6.3.3. Carrier-Mute Threshold
The Carrier-Mut e threshold has been m ade programmable according to the user’s preferences. An inter nal
hysteresis ensures stable behavior.
Table 6–8: Write Register on I2C Subaddress 10
Register
FunctionName
: Carrier-Mute Threshold
hex
Address
THRESHOLDS
00 24
(write)Carrier-Mute THRESHOLD Register
hex
Defines threshold for the carrier mute feature
bit[15:0]0000
Carrier-Mute always ON (both channels muted)
hex
...
002A
default setting after reset
hex
...
07FF
Carrier-Mute always OFF
hex
(both channels forced on)
recommended range : 0014
hex
...0050
CM_THRESH
hex
Micronas85
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MSP 34x0GPRELIMINARY DATA SHEET
6.3.4. Regist er AD_CV
The use of this register is no longer recommended.
Use it only in cases where compatibility to the
MSP 34x0D is required. Using the STANDARD
SELECTION register together with th e MODUS register provides a more economic way to program the
MSP 34x0G.
Table 6–9: AD_CV Register; reset status: all bits are “0”
AD_CV
hex
)
(00 BB
BitFunctionSettings2-8, 0A-60
Automatic setting by
STANDARD SELECT Register
hex
9
[0]not usedmust be set to 000
[1:6]Reference level in case of Automatic Gain
101000100011
Control = on (see Table 6–10). Constant
gain factor when Automatic Gain Control =
off (see Table 6–11).
[7]Determination of Automatic Gain or
Constant Gain
[8]Selection of Sound IF source
(identical to MODUS[8])
[9]MSP-Carrier-Mute Feature0 = off: no mute
0 = constant gain
1 = automatic gain
0 = ANA_IN1+
1 = ANA_IN2+
11
XX
10
1 = on: mute as de-
scribed in section 2.2.2.
[10:15]not usedmust be set to 000
X : not affected while choosing the TV sound standard by means of the STANDARD SELECT Register
Note: This register is initialized during STANDARD SELECTION and is automatically updated when Automatic
Sound Select (MODUS[0]=1) is on.
Table 6–10: Reference Values for Active AGC (AD_CV[7] = 1)
ApplicationInput Signal ContainsAD_CV [6:1]
Ref. Value
Terrestrial TV
− FM Standards
− NICAM/FM
− NICAM/AM
− NICAM only
1 or 2 FM Carriers
1 FM and 1 NICAM Carrier
1 AM and 1 NICAM Carrier
1 NICAM Carrier only
101000
101000
100011
010100
SAT1 or more FM Carriers100011350.10 − 3 V
ADRFM and ADR carrierssee DRP 3510A data sheet
1)
For signals above 1.4 Vpp, the minimum gain of 3 dB is switched, and overflow of the A/D converter may result. Due to the
robustness of the internal processing, the IC works up to and even more than 3 V
FM1/FM2 ratio are supposed. In this overflow case, a loss of FM-S/N ratio of about 10 dB may appear.
AD_CV [6:1]
in integer
40
40
35
20
Range of Input Signal
at pin ANA_IN1+
and ANA_IN2+
0.10 − 3 V
0.10 − 3 V
0.10 − 1.4 V
pp
pp
1)
1)
pp
(recommended: 0.10 − 0.8Vpp)
0.05 − 1.0 V
, if norm conditions of FM/NICAM or
pp
pp
pp
1)
86Micronas
Page 87
PRELIMINARY DATA SHEETMSP 34x0G
Table 6–11: AD_CV parameters for Constant Input Gain (AD_CV[7]=0)
For signals above 1.4 Vpp, the minimum gain of 3 dB is switched and overflow of the A/D converter may result. Due to the
robustness of the internal processing, the IC works up to and even more than 3 V
FM1/FM2 ratio are supposed. In this overflow case, a loss of FM-S/N ratio of about 10 dB may appear.
6.3.5. Register MODE_REG
Note: The use of this register is no longer recom-
mended. It should be used on ly in cases where software compatibility to the MSP 34x0D is required.
Using the STANDARD SELECTION register together
with the MODUS register provides a more economic
way to program the MSP 34x0G.
As soon as this register is applied, the MSP 34x0G
works in the MSP 34x0D Manual/Compatibility
Mode. In this mode, BTSC, EIA-J, and FM-Radio are
disabled. Only MSP 34x0D features are available; the
use of MODUS and STATUS register is not allowed.
The MSP 34x0G is rese t to the normal mode by first
programming the MODUS register, followed by transmitting a valid standard code to the STANDARD
SELECTION register.
The register ‘MODE_REG’ contains the control bits
determining th e operation mode of the MSP 34x0G in
the MSP 34x0D Manual/Compatibi lity Mode; Table 6–
12explains all bit positions.
Micronas87
Page 88
MSP 34x0GPRELIMINARY DATA SHEET
Table 6–12: Control word ‘MODE_REG’; reset status: all bits are “0”
MODE_REG 00 83
hex
Automatic setting by
STANDARD SELECT Register
BitFunctionCommentDefinition2 - 58, A, B9
[0]not used0 : must be used000
[1]DCTR_TRIDigital control out
0/1 tri-state
[2]I
2
S_TRII2S outputs tri-state
(I2S_CL, I2S_WS,
0 : active
1 : tri-s tate
0 : active
1 : tri-s tate
XXX
XXX
I2S_DA_OUT)
[3]I
[4]I
2
S Mode
2
S_WS ModeWS due to the Sony or
[5]Audio_CL_OUTSwitch
1)
Master/Slave mode
2
of the I
S bus
Philips-Format
Audio_Clock_Output
0 : Master
1 : Slave
0 : Sony
1 : Philips
0 : on
1 : tri-s tate
XXX
XXX
XXX
to tri-state
[6]NICAM
1)
Mode of MSP-Ch10 : FM
011
1 : Nicam
[7]not used0 : must be used000
[8]FM AMMode of MSP-Ch20 : FM
001
1 : AM
[9]HDEVHigh Dev iat ion Mode
(channel matrix m ust b e
0 : normal
1 : high deviation mode
000
sound A)
[11:10]not used0 : must be used000
[12]MSP-Ch1 Gainsee also Table 6–140 : Gain = 6 dB
000
1 : Gain = 0 dB
[13]FIR1-Filter
Coeff. Set
[14]ADRMode of MSP Ch1/
[15]AM-GainGain for AM
1)
NICAM and I2S-Master mode are not allowed simultaneouslyX: not affected by
The loading sequences mus t be obeyed. To change a
coefficient set, the c omplete block FIR1 or FIR2 must
be transmitted.
Note: For compatibility with MSP 3410B, IMREG1 and
IMREG2 have to be transmitted. The value for
IMREG1 and IMREG2 is 004. Due to the partitioning to
8-bit units, the values 04
hex
, and 00
hex
hex
arise.
, 40
6.3.7. DCO-Registers
Note: The use of this register is no longer recom-
mended. It should be us ed only in cases where software-compatibility to the MSP 34x0D is required.
Using the STANDARD SELECTION register together
with the MODUS register provides a more economic
way to program the MSP 34x0G.
When selecting a TV-sound standard by means of the
STANDARD SELECT regi ster, al l frequency tuning is
performed automati cally.
If manual setting of the tunin g frequency is required, a
set of 24-bit register s determin ing the mixing freq uencies of the quadrature mi xers can be written ma nually
into the IC. In Table 6–15, some examples of DCO registers are listed. It is necessar y to divi de them up into
low part and high par t. The formula for the calculation
of the registers for any chosen IF freque ncy is as follows:
8FM/AM_Coef (1)8
9FM/AM_Coef (0)8
6.3.6. FIR-Parameter, Registers FIR1 and FIR2
Note: The use of this register is no longer recom-
mended. It should be used on ly in cases where software compatibility to the MSP 34x0D is required.
Using the STANDARD SELECTION register together
with the MODUS register provides a more economic
way to program the MSP 34x0G.
Data-shaping and/or FM/AM bandwidth limitation is
performed by a pair of linear phase Finite Impulse
Response filters (FIR-fi lter). The filter coefficients are
programmable and are eithe r configur ed autom aticall y
by the STANDARD SELECT register or wr itten manually by the control processor via the control bus. Two
not necessarily different sets of coefficients are
required: one for MSP-Ch1 (NICAM or FM2) and one
for MSP-Ch2 (FM1 = FM-mono). In Table 6–14 several
coefficient sets are proposed.
INCR
= int(f/fs ⋅ 224)
dec
with: int = integer function
f= IF frequency in MHz
= sampling frequency (18.432 MHz)
f
S
Conversion of INCR into hex-format and s eparation of
the 12-bit low and high parts lead to the required register values (DCO1_HI or _LO for MSP-Ch1, DCO2_HI
or LO for MSP-Ch2).
To load the FIR-filte rs, the following data values are to
be transferred 8 bits at a time embeddedLSB-bound in a 16-bit word.
Micronas89
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Table 6–14: 8-bit FIR-coefficients (decimal integer) for MSP 34x0D; reset status: all coefficients are “0”
FIR filter corresponds to a
band-pass with a bandwidth of B = 130 to 500 kHz
130
kHz
180
kHz
200
kHz
280
kHz
380
kHz
B
f
c
500
kHz
frequency
Autosearch
For compatibility, except for the FIR2-AM and the Autosearch-sets, the FIR-filter programming as used for the MSP 3410B is also possible.
ADR coefficients are listed in the DRP data sheet.
Table 6–15: DCO registers for the MSP 34x0G; reset status: DCO_HI/LO = “0000”
6.4. Manual/Compatibility Mode:
Description of Demodulator Read Registers
Note: The use of these register is no longer recom-
mended. It should be used on ly in cases where software compatibility to the MSP 34x0D is required.
Using the STANDARD SELECTION register together
with the STATUS register provides a more economic
way to program the MSP 34x0G and to retr ieve information from the IC.
All registers except C_AD_ BITs are 8 bits wide. They
can be read out of the RAM of the MSP 34x0G if the
MSP 34x0D Manual/Compatibility Mode is required.
All transmissions take place in 16-bit words. The valid
8-bit data are the 8 LSBs of the received data word.
If the Automatic Sound Selec t feature is not used, the
NICAM or FM-identi fication parameters must be re ad
and evaluated by the controller in order to enable
appropriate switching of the channel select matrix of
the baseband processing part. The FM-identification
registers are desc ribed in s ection 6.6.1 .To handle the
NICAM-sound and to observe the NICAM-quality, at
least the registers C_AD_BITS and ERROR_RATE
must be read and evaluated by the controller. Additional data bits and CIB bits, if supplie d by the NICAM
transmitter, can be obtained by reading the registers
ADD_BITS and CIB_BITS.
Table 6–16: NICAM operation modes as defined by
the EBU NICAM 728 specification
C4C3C2C1Operation Mode
0000Stereo sound (NICAMA/B),
independent mono sound (FM1)
0001Two independent mono signals
(NICAMA, FM1)
0010Three independent mono channels
(NICAMA, NICA MB , FM1)
0011Data transmission only; no audio
1000Stereo sound (NICAMA/B), FM1
carries same channel
1001One mono signal (NICAMA). FM1
carries same channel as NICAMA
1010Tw o in dependent m ono chann els
(NICAMA, NICAMB). FM1 carries
same channel as NICAMA
1011Data transmission only; no audio
x1xxUnimplemented sound coding
option (not yet defined by EBU
NICAM 728 specification)
AUTO_FM: monitor bit for the AUTO_FM Status:
0: NICAM source is NICAM
1: NICAM source is FM
6.4.1. NICAM Mode Control/Additional Data Bits
Register
NICAM operation mode cont rol bits and A[2:0] of the
additional data bits.
chronization (S = 1). If S = 0, the MSP 3410/3450G
has not yet synchronized correctly to frame and
sequence, or has lost synchroni zation. The remaining
read registers a re therefore not valid. The MS P mutes
the NICAM outpu t automatically and tr ies to synchronize again as long as MODE_REG[6] is set.
The operation mode is coded by C4-C1 as shown in
Table 6–16.
Note: It is no longer necessary to read out and evaluate the C_AD_BITS. All evaluation is performed in the
MSP and indicated in the STATUS register.
6.4.2. Additional Data Bits Register
Contains the remaining 8 of the 11 additional data bits.
The additional data bits are not yet defined by the
NICAM 728 system.
Format:
MSBADD_BITS 00 38
76543210
A[10]A[9]A[8]A[7]A[ 6]A[5]A[4]A[3]
hex
LSB
6.4.3. CIB Bits Register
CIB bits 1 and 2 (see NICAM 728 specifications).
Format:
MSBCIB_BITS 00 3E
76543210
hex
LSB
xxxxxxCIB1CIB2
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6.4.4. NICAM Error Rate Register
ERROR_RATE00 57
Error free0000
maximum error rate07FF
hex
hex
hex
Average error rate of the NICAM reception in a time
interval of 182 ms, which should be cl os e to 0. T he in itial and maximum value of ERROR_RATE is 2047.
This value is also active if the NICAM bit of
MODE_REG is not set . Since th e value is ac hieved by
filtering, a certain transition time (approx. 0.5 sec) is
unavoidable. Acceptable audio may have error rates
up to a value of 700 int. Individual evaluation of this
value by the controller and an appropriate threshold
may define the fallback mode from NICAM to FM/
AM-Mono in case of poor NICAM reception.
The bit error rate per second (BE R) can be calcul ated
by means of the following formula:
−6
BER = ERROR_RATE * 12.3*10
/s
6.4.5. PLL_CAPS Readback Register
It is possible to read out the actual setting of the
PLL_CAPS. In standard applications, this register is
not of interest for the customer.
PLL_CAPS02 1F
hex
L
6.4.7. Automatic Search Function for FM-Carrier
Detection in Satellite Mode
The AM demodulation ability of the MSP 3410G and
MSP 3450G offers the possibili ty to calc ulate the “field
strength” of the momentarily selected FM carrier,
which can be read ou t by the contro ller. In SAT rec eivers, this feature can be used to make automatic FM
carrier sea r ch pos sible.
For this, the MSP has to be switched to AM-mode
(MODE_REG[8]), FM-Prescale must be set to
7F
hex
= +127
, and the FM DC notch (see section
dec
6.5.7.)must be switched off. The sound-IF frequency
range must now be “scanned” in the MSP-channel 2 by
means of the programmable quadrature mixer with an
appropriate in cremental frequency (i.e. 10 kHz). After
each incrementation, a fie ld strength value is available
at the quasi-peak de tec tor output (quasi-peak de tec tor
source must be set to F M), which must be examined
for relative maxima by the controller. This results in
either continuing sea rch or switching the MSP back to
FM demodulation mode.
During the search p rocess, the FIR2 must be loaded
with the coefficient set “AUTOSEARCH”, which
enables small bandwidth, resulting in appr opriate field
strength characteristics. The absolute field strength
value (can be read out of “quasi-peak de tector output
FM1”) also gives information on whether a main FM
carrier or a subcarrier was detected; and as a practical
consequence, the FM bandwidth (FIR1/2) and the
deemphasis (50 µs or adaptive) can be switched
accordingly.
It is possible to read out the actual setting of
AGC_GAIN in Automatic Gain Mode. In standard
applications, this reg ister is not of in terest for the customer.
AGC_GAIN02 1E
max. amplification
(20 dB)
min. amplification
(3 dB)
hex
0001 010014
0000 000000
hex
hex
Due to the fact that a constant demodulation frequency
offset of a few kHz leads to a DC level in the demodulated signal, further fine tun in g o f the found car r ie r ca n
be achieved by evaluating the “DC Level Readout
FM1”. Therefore, the FM DC Notch must be switched
on, and the demodulator part must be switched back to
FM-demodulation mode.
For a detailed description of the automatic search
function, please refer to the correspon ding MSP Windows software.
92Micronas
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PRELIMINARY DATA SHEETMSP 34x0G
6.5. Manual/Compatibility Mode:
Description of DSP Write Registers
This table shows additional modes for the channel
matrix registers.
The sum/difference mode can be used together with
the quasi-peak detector to deter mine the sound m aterial mode. If the difference signal on channe l B (right)
is near to zero, and the sum signal on chann el A (left)
is high, the incomi ng aud io si gna l i s mon o. If there is a
significant level on the difference signa l, the incoming
audio is stereo.
Note: SCART Volume linear mode will not be supporte d in the future (doc umented for compatibility r easons only).
Note: This register is initialized during STANDARD
SELECTION and is auto maticall y updated whe n Automatic Sound Select (MODUS[0]=1) is on.
6.5.4. FM Adaptive Deemphasis
FM Adaptive
Deemphasis WP1
OFF0000 000000
WP10011 11113F
00 0F
RESET
hex
L
hex
hex
Note: This register is initialized during STANDARD
SELECTION and is auto maticall y updated whe n Automatic Sound Select (MODUS[0]=1) is on.
Micronas93
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MSP 34x0GPRELIMINARY DATA SHEET
6.5.5. NICAM Deemphasis
A J17 Deemphasis is always applied to the NICAM signal. It is not switchable.
6.5.6. Identification Mode for A2 Stereo Systems
Identification Mode00 15
Standard B/G
(German Stereo)
Standard M
(Korean Stereo)
Reset of Ident-Filter0011 11113F
hex
0000 000000
RESET
0000 000101
L
hex
hex
hex
To shorten the response ti me of the i dent ifi ca tio n al gorithm after a program change between two FM-Stere o
capable programs, the reset of the ident-filter can be
applied.
Sequence:
1. Program change
6.6. Manual/Compatibility Mode:
Description of DSP Read Registers
All readable registers are 16-bit wide. Transmissions
2
C bus have to take place in 16-bit words. Some of
via I
the defined 16-bit words a re divided into low and hig h
byte, thus holding two different control entities.
These registers are not writable.
6.6.1. Stereo Detection Register
for A2 Stereo Systems
Stereo Detection
Register
Stereo ModeReading
MONOnear zero
STEREOpositive value (ideal
BILINGUALnegative value (ideal
00 18
hex
(two’s complement)
reception: 7F
reception: 80
hex
hex)
)
H
2. Reset ident-filter
3. Set identification mode back to standard B/G or M
4. Wait approx. 500 ms
5. Read stereo detection register
Note: This register is initialized during STANDARD
SELECTION and is automati cally update d when Automatic Sound Select (MODUS[0]=1) is on.
6.5.7. FM DC Notch
The DC compensation filter (FM DC Notch) for FM
input can be switched off. This is used to sp eed up th e
automatic search functio n (see Section 6.4.7.). In normal FM-mode, the FM DC Notch should be switched
on.
FM DC Notch00 17
ON0000 000000
OFF0011 11113F
hex
Reset
L
hex
hex
Note: It is no longer necess ar y to read out and evaluate the A2 identification level. All evaluation is performed in the MSP an d i ndi c ated in the S TATUS r egister.
6.6.2. DC Level Register
DC Level Readout
FM1 (MSP-Ch2)
DC Level Readout
FM2 (MSP-Ch1)
DC Level[8000
00 1B
hex
00 1C
hex
... 7FFF
hex
values are 16 bit two’s
complement
H+L
H+L
hex
]
The DC level register measures the DC compon ent of
the incoming FM sign als (FM1 and FM2). This can be
used for seek functions in satel lite recei vers and for IF
FM frequencies fine tuning. A too low demodulation
frequency (DCO) results in a positive DC-level and
vice versa. For further proc essing, the DC content of
the demodulated FM signals is suppressed. Th e time
constant τ, defi ning the transi tion time of the DC Level
Register, is approximately 28 ms.
94Micronas
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PRELIMINARY DATA SHEETMSP 34x0G
6.7. Demodulator Source Channels in Manual Mode
6.7.1. Terrestric Sound Standards
Ta b l e 6 –17 shows th e source channel assignment of
the demodulated sign als in case of manual mode for
all terrestric sound standards. See Table 2–2 for the
assignment in the Automatic Sound Select mode. In
manual mode for terrestri c sound standards, only two
demodulator sources are defined.
6.7.2. SAT Sound Standards
Ta b l e 6 –18 shows th e source channel assignment of
the demodulated signals for SAT sound standards.
Table 6–17: Manual Sound Select Mode for Terrestric Sound Standards
Broadcasted
Sound
Standard
B/G-FM
D/K-FM
M-Korea
M-Japan
B/G-NICAM
L-NICAM
I-NICAM
D/K-NICAM
D/K-NICAM
(with high
deviation FM)
Selected MSP
Standard
Code
03
04, 05
02
30
08
09
0A
0B
0C
0D
20
Source Channels of Sound Select Block
Broadcasted
Sound Mode
MONO Sound A MonoMonoMono
STEREOGerman Stereo
BILINGUAL,
Languages A and B
NICAM not available
or NICAM error rate
too high
MONO Sound A Mono
STEREOSound A Mono
BILINGUAL,
Languages A and B
MONOSound A MonoMonoMono
STEREOKorean StereoStereoStereo
MONO + SAPSound A MonoMonoMono
FM MatrixFM/AM
(use 0 for channel select)
Korean Stereo
No MatrixLeft = A
Sound A Mono
Sound A Mono1)analog MonoLeft = NICAM A
StereoStereo
Right = B
1)
analog Monono sound
1)
analog MonoNICAM Mon o
1)
analog MonoNICAM Stereo
Stereo or A/B
(use 1 for channel select)
Left = A
Right = B
with AUTO_FM:
analog Mono
Right = NICAM B
BTSC
21
FM-Radio40
1)
Automatic refresh to Sound A Mono, do not write any other value to the register FM Matrix!
STEREO + SAPKorean StereoStereoStereo
MONO
STEREO
MONO + SAP
STEREO + SAP
MONOSound A MonoMonoMono
STEREOKorean StereoStereoStereo
Sound A MonoMonoMono
No Matrix
Left = Mono
Right = SAP
Left = Mono
Right = SAP
Micronas95
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MSP 34x0GPRELIMINARY DATA SHEET
Table 6–18: Manual Sound Select Modes for SAT-Standards
Broadcasted
Sound
Standard
FM SAT
Selected
MSP Standard
Code
6, 50
hex
51
hex
Source Channels of Sound Select Block
Broadcasted
Sound Mode
MONO Sound A MonoMonoMonoMono
STEREO No MatrixStereoStereoStereo
BILINGUALNo MatrixLeft = A (FM1)
FM MatrixFM/AM
(source select: 0)
Right = B (FM2)
for SAT-Modes
Stereo or A/B
(source select: 1)
Left = A (FM1)
Right = B (FM2)
Stereo or A
(source select: 3)
A (FM1)
96Micronas
Page 97
PRELIMINARY DATA SHEETMSP 34x0G
6.8. Exclusions of Audio Baseband Features
In general, all fu nctions can be switched indepen dently.
Two exceptions exist:
1. NICAM cannot be processed simultaneously with
the FM2 channel.
2. FM adaptive deemphasis cannot be processed
simultaneously with FM-identification.
6.9. Phase Relationship of Analog Outputs
The analog output signals: Lo udspeaker, head phone,
and SCART2 all have the same phases. The user
does not need to correct output phases when using
these analog outputs di re ctly. The SCART1 output has
opposite phase.
2
Using the I
S-outputs for other DSP s or D/A converters, care must be taken to adjust for the correct phase.
If the attached copr ocessor is one of the MSP family,
the following schematics h elp to determine the phase
relationship.
6.10. Compatibility Restrictions to MSP 34x0D
The MSP 34x0G is fully hardware compatible to the
MSP 34x0D. However, to substitute a M SP 34x0D by
the correspondin g MS P 34x0G, t he c on tro ll er so ftware
has to be adapted slightly:
1. The register FM-Matrix (00 0E
changed from “no matrix (00
)” during mono transmission of all TV-sound
(03
hex
low part) must be
hex
)” to “sound A mono
hex
standards (see also Table 6–17).
2. With the MSP 34x0G, the STAND ARD SELECTION
initializes the FM-deemphasis, which is not the case
for the MSP 34x0D. So, if STANDARD SELECTION
is applied, this I
2
C instruction can be omitted.
SCART1
SCART2
SCART3
SCART4
MONO
SCART
DSP
Input
Select
I2S_OUT1/2I2S_IN1/2
Audio
Baseband
Processing
MONO, SCART1...4
SCART1-Ch.
SCART2-Ch.
Loudspeaker
Headphone
SCART1
SCART2
SCART
Output Select
Fig. 6–2: Phase diagram of the MSP 34x0G
Micronas97
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MSP 34x0GPRELIMINARY DATA SHEET
7. Appendix D: MSP 34x0G Version History
MSP 3430G-A1
First release for BTSC-Stereo/SAP and FM-Radio.
MSP 3440G-A2
Extended Automatic Sound Sele ct feature (incompatible to Version A1).
Known restrictions:
– SAP detection unstable
MSP 34x0G-B5
– additional package PLQFP64
– digital input specification changed as of version B5
and later (see Section 4.6. on page 58)
– max. analog high supply voltage AHVSUP 8.7 V.
– supply currents changed as of version B5 and later
(see Section 4.6.3. on page 62)
– programmable A2 and carrier mute thresholds
– new D/K standard 0D
– additional preference in Automatic Standard Detec-
tion
MSP 34x0G-B6
– improved AM-performance
– new D/K standard for Poland
– improved I
– faster system-D/K for stereo detection
– extended features in the CONTROL register
MSP 34x0G-B8
2
C hardware proble m handling
: HDEV3 and NICAM
hex
– fine-tuning of A2-identification and carrier mute
– EIA-J identification: faster transition time stereo/
bilingual to mono
– J17 FM-deemphasis implemented
– input specification for RESETQ and TESTEN
SIF-inputs for more
attenuation of video
components:
LOUD
SPEAKER
HEAD
PHONE
AHVSUP
470
pF
1.5
nF
10
µF
AHVSS
VREF1
VREF2
RESETQ
(from Controller, see section 4.6.3.3.)
RESETQ
DVSUP
220
pF
470
pF
1.5
nF
10
µF
DVSS
AVSUP
470
pF
1.5
nF
10
µF
AVSS
5 V5 V8 V
AVSS
(5 V)
AHVSS
AHVSS
AHVSS
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MSP 34x0GPRELIMINARY DATA SHEET
9. Data Sheet History
1. Preliminary data sheet: “MSP 34x0G Multistandard
Sound Processor Family, Edition Sept. 30, 1998,
6251-476-1PD. First release of the preliminary data
sheet.
2. Preliminary data sheet: “MSP 34x0G Multistandard
Sound Processor Family, Edition Oct. 9, 1998,
6251-476-2PD. Second release of the preliminary data
sheet. Major changes:
– Table 3–9 on page 24: MODUS Register bit [0] func-
tion changed
– Table 3–11 on page 30: Treble Headphone Channel
register address changed, bit[15:8] hex and dB values changed
– Table 3–11 on page 33: Volume SCART1/2 Output
Channel register address changed
– Table 6–17 on page 95: M-BTSC and RM-Radio
description ch ange d
– pin ASG3 changed to “not connected”
3. Preliminary data sheet: “MSP 34x0G Multistandard
Sound Processor Family, Edition Oct. 6, 1999,
6251-476-3PD. Third release of the preliminary data
sheet. Major changes:
4. Preliminary data sheet: “MSP 34x0G Multistandard
Sound Processor Family, Edition Jan. 19, 2001,
6251-476-4PD. Fourth release of the preliminary data
sheet.
Major changes:
– specification for version B8 added
(see Appendix D: Version History)
– MSP 3460 added, MSP 3430 removed
– description for MDB added
– specification for MNR added
All information and data contained in this data sheet are without any
commitment, are not to be considered as an offer for conclusion of a
contract, nor shall they be construed as to create any liability. Any new
issue of this data sheet invalidates previous issues. Product availability
and delivery are exclusively subject to our respective order confirmation
form; the same applies to orders based on development samples delivered. By this publication, Micronas GmbH does not assume responsibility for patent infr ingements or other right s of third parties whic h may
result from its use.
Further, Micronas GmbH reserves the right to revise this publication and
to make changes to its conte nt, at any t ime, withou t obligatio n to noti fy
any person or entity of such revisions or changes.
No part of this publication may be reproduced, photocopied, stored on a
retrieval system, or transmitted without the express written consent of
Micronas GmbH .
100Micronas
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